When your child says, “I don’t feel good,” it can be difficult to know what is wrong or what to do next. A fever may appear suddenly. A sore throat can make swallowing painful. Red, irritated eyes may develop overnight. Vomiting or diarrhea can leave a child tired and uncomfortable.

Most parents face the same question: Should I care for my child at home, call their healthcare provider, visit urgent care, or seek emergency care?

Common childhood illnesses can cause fever, sore throat, cough, congestion, red eyes, vomiting, diarrhea, and other symptoms. Many mild illnesses improve with rest and supportive care, but persistent, severe, or worsening symptoms should be evaluated by a healthcare professional.

Understanding the most common symptoms can help you make a more informed decision about your child’s care.

Key Takeaways for Parents

• Fever is a symptom and can occur with many different illnesses.
• Most childhood sore throats are not caused by strep, but testing may be appropriate when strep is suspected.
• Red or pink eyes can have viral, bacterial, allergic, or other causes.
• Vomiting and diarrhea can lead to dehydration, especially in younger children.
• A child’s overall behavior and ability to drink, eat, breathe comfortably, and participate in normal activities matter.
• Symptoms that are severe, persistent, or getting worse should be medically evaluated.

Why Do Children Get Sick So Often?

Children regularly come into close contact with other children at school, daycare, sports, birthday parties, playgrounds, and other activities.

They also frequently touch shared objects and surfaces before touching their eyes, nose, or mouth.

Different illnesses spread in different ways. Some infections spread through respiratory droplets or close contact. Others can spread through contaminated hands, surfaces, food, or contact with bodily secretions.

Frequent handwashing, good cough and sneeze etiquette, avoiding shared personal items, and keeping children home when they are genuinely sick can help reduce the spread of infections. These are also key prevention measures emphasized in the original illness guidance. 1. Back to School Illnesses in …

What Are Common Signs That Your Child Is Sick?

Children do not always describe their symptoms clearly, particularly when they are young.

Sometimes the first sign is simply that your child is behaving differently.

You may notice that your child is:

• More tired than usual
• Less interested in eating
• Drinking less
• Irritable or unusually quiet
• Sleeping more than usual
• Complaining about pain
• Less interested in playing or normal activities

You may also notice specific physical symptoms such as fever, coughing, congestion, sore throat, vomiting, diarrhea, or red eyes.

Let’s look at some of the common childhood illnesses and symptoms parents encounter.

1. Fever in Children

Fever is one of the most common reasons parents become concerned about their child’s health.

It is not an illness itself. Instead, fever can occur as the body’s response to many different infections and medical conditions.

When your child has a fever, pay attention to more than the number on the thermometer.

Consider:

• Is your child drinking fluids?
• Are they urinating normally?
• Are they alert and responding normally?
• Are they breathing comfortably?
• Do they have a rash?
• Are they vomiting repeatedly?
• Are their symptoms improving or becoming worse?

A fever accompanied by concerning symptoms, significant pain, dehydration, unusual sleepiness, or worsening illness may require medical evaluation.

Fever in very young infants requires special consideration, so parents should seek appropriate pediatric medical guidance.

2. Sore Throat and Strep Throat

A sore throat is another common childhood complaint.

Many sore throats are caused by viruses. However, strep throat is an important bacterial infection to recognize.

Strep throat is caused by group A Streptococcus bacteria and is particularly common among children between ages 5 and 15. 1. Back to School Illnesses in …

Common Symptoms of Strep Throat

Symptoms may include:

• A sore throat that starts suddenly
• Pain when swallowing
• Fever
• Red or swollen tonsils
• Swollen lymph nodes in the neck
• White patches on the tonsils
• Small red spots on the roof of the mouth

Some children may also experience headache, nausea, vomiting, stomach discomfort, or a rash. 1. Back to School Illnesses in …

Does Every Sore Throat Need a Strep Test?

No.

When obvious viral symptoms are present, a healthcare provider may determine that strep testing is unnecessary. If strep throat is suspected, testing may involve a rapid antigen test or throat culture. 1. Back to School Illnesses in …

Because symptoms can overlap, parents should avoid assuming that every sore throat requires antibiotics.

3. Cough, Runny Nose, and Congestion

Coughing, sneezing, nasal congestion, and runny noses are common in children.

Many respiratory illnesses are viral and improve with time and supportive care.

Parents should pay attention to whether symptoms are improving or getting worse.

Consider seeking medical evaluation if your child’s respiratory symptoms are persistent or worsening, particularly if your child is having difficulty eating, drinking, sleeping, or participating in normal activities.

Significant difficulty breathing requires more urgent medical attention.

4. Pink Eye and Red or Irritated Eyes

Your child wakes up with a red, watery, or crusty eye.

Is it pink eye?

Possibly, but not every red eye has the same cause.

Conjunctivitis, commonly known as pink eye, can result from viruses, bacteria, allergies, chemicals, contact-lens problems, and other causes.

Viral and bacterial conjunctivitis can be contagious, while allergic conjunctivitis is not. 1. Back to School Illnesses in …

Common Pink Eye Symptoms

Parents may notice:

• Pink or red eyes
• Watery eyes
• Itching
• Irritation
• Eyelid swelling
• Burning or gritty sensation
• Eye discharge
• Eyelids sticking together

Symptoms alone do not always reveal the exact cause. 1. Back to School Illnesses in …

Does Pink Eye Always Need Antibiotics?

No.

Antibiotics do not treat viral pink eye. Some mild bacterial cases may also improve without antibiotics, although a healthcare provider may prescribe antibiotic drops or ointment depending on the circumstances. 1. Back to School Illnesses in …

Never give your child someone else’s eye medication or use leftover prescription drops without professional guidance.

When Should a Red Eye Be Evaluated?

Seek medical attention for symptoms such as:

• Significant eye pain
• Light sensitivity
• Blurred vision
• Intense redness
• Worsening symptoms

These symptoms deserve medical evaluation rather than assuming the problem is routine pink eye. 1. Back to School Illnesses in …

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5. Vomiting and Diarrhea

Vomiting and diarrhea are common childhood symptoms and can have several causes.

A “stomach bug” is a general term rather than a specific diagnosis. Norovirus, for example, is one common cause of acute gastroenteritis and may cause sudden vomiting, diarrhea, nausea, and stomach pain. 1. Back to School Illnesses in …

For parents, one of the biggest concerns is dehydration.

Signs of Possible Dehydration in Children

Watch for:

• Reduced urination
• Dry mouth
• Unusual tiredness
• Dizziness
• Difficulty keeping fluids down
• Increasing sleepiness

Young children may become dehydrated more quickly when vomiting and diarrhea occur frequently. 1. Back to School Illnesses in …

If your child cannot keep fluids down, is urinating much less than usual, becomes unusually sleepy, or develops other concerning symptoms, seek medical guidance.

6. Stomach Pain

Children frequently complain about stomachaches.

Sometimes the cause is relatively minor, but abdominal pain can also accompany illnesses that need medical attention.

Pay attention to:

• Where the pain is located
• How severe it is
• How long it lasts
• Whether your child has a fever
• Whether vomiting or diarrhea is present
• Whether your child can eat and drink
• Whether the pain is getting worse

Severe, persistent, or worsening abdominal pain should not simply be assumed to be a stomach bug.

7. Rashes in Children

Rashes can appear for many reasons, including irritation, allergies, viral illnesses, bacterial infections, and other conditions.

Rather than focusing only on what the rash looks like, consider your child’s other symptoms.

Ask yourself:

• Does my child have a fever?
• Is the rash spreading quickly?
• Is there significant itching or pain?
• Is there swelling?
• Is my child vomiting?
• Is my child otherwise acting sick?
• Are symptoms getting worse?

A rash accompanied by significant illness should be medically evaluated.

If a child develops a severe allergic reaction with difficulty breathing or significant facial or throat swelling, seek emergency care immediately.

When Can My Child Go Back to School or Daycare?

The answer depends on the illness, your child’s symptoms, medical advice, and the school’s or daycare’s policies.

In general, children should be well enough to participate comfortably in normal activities before returning.

CDC school guidance recommends staying home with symptoms such as fever, repeated vomiting, significant diarrhea, or respiratory symptoms that are worsening rather than improving. 1. Back to School Illnesses in …

For confirmed strep throat, CDC guidance states that a child should be fever-free and have received appropriate antibiotics for at least 12 to 24 hours before returning to school or daycare. 1. Back to School Illnesses in …

For vomiting and diarrhea, return should depend on recovery and the child’s ability to participate normally. CDC general school guidance indicates that vomiting should have resolved overnight and the child should be able to keep food and liquids down in the morning. Diarrhea should also have improved, without accidents and with bowel movements close to the child’s normal pattern. 1. Back to School Illnesses in …

Always consider the specific school’s or daycare’s illness policy as well.

What Can Parents Do at Home?

Many mild childhood illnesses can initially be managed with supportive care while parents monitor symptoms.

Depending on the child’s age and condition, this may include:

• Encouraging fluids
• Providing adequate rest
• Offering appropriate foods as tolerated
• Monitoring temperature
• Watching for new or worsening symptoms
• Following medication instructions from a healthcare professional

Avoid giving your child leftover antibiotics or medications prescribed to someone else.

Most importantly, monitor how the illness is progressing.

A child who is gradually becoming more active and comfortable is different from a child who continues to deteriorate.

How Can You Help Prevent Illness From Spreading?

You cannot prevent every childhood illness, but several everyday habits can reduce transmission.

Make Handwashing a Habit

Encourage children to wash their hands with soap and water before eating, after using the bathroom, after coughing or sneezing into their hands, and whenever their hands are visibly dirty.

Teach Proper Cough and Sneeze Etiquette

Children should cough or sneeze into a tissue or their elbow instead of their hands.

Don’t Share Personal Items

Water bottles, utensils, towels, washcloths, and other personal items should not be shared.

Keep Sick Children Home When Appropriate

Giving children time to recover can also reduce the chance of spreading infection to classmates and others.

Soap-and-water handwashing is particularly important with illnesses such as norovirus. Hand sanitizer should not be considered a complete replacement for proper handwashing in these situations. 1. Back to School Illnesses in …

When Should You Take Your Child to Urgent Care?

If your child is sick and the problem is not an emergency, urgent care can be appropriate when symptoms need timely evaluation.

Consider seeking medical care for:

• Persistent or concerning fever
• Significant sore throat
• Possible strep throat
• Red or irritated eyes
• Repeated vomiting or diarrhea
• Difficulty maintaining hydration
• Persistent cough or congestion
• Rash associated with illness
• Symptoms that continue to worsen rather than improve

The original clinical guidance specifically identifies persistent sore throat, fever with concerning symptoms, illness-associated rash, difficulty maintaining hydration, frequent vomiting or diarrhea, and worsening symptoms as reasons to consider contacting a healthcare professional. 1. Back to School Illnesses in …

A medical evaluation can help determine whether your child needs testing, treatment, supportive care, or a different level of medical attention.

When Should You Seek Emergency Care?

Some symptoms should not wait for a routine clinic or urgent care visit.

Call 911 or seek emergency medical care for severe or potentially life-threatening symptoms, including severe difficulty breathing, loss of consciousness, seizures, severe dehydration, confusion, a severe allergic reaction involving breathing difficulty, or other rapidly worsening or alarming symptoms.

Parents know their child’s usual behavior. If your child appears severely ill or you believe something is seriously wrong, seek appropriate medical care promptly.

When Your Child Isn’t Feeling Like Themselves

Parents do not need to diagnose every fever, cough, sore throat, stomachache, or red eye at home.

Knowing the signs of common childhood illnesses, monitoring how symptoms change, keeping your child hydrated, and recognizing when professional evaluation is appropriate can make the next decision easier.

If your child has a fever, sore throat, cough, pink eye symptoms, vomiting, diarrhea, or another non-emergency illness that needs evaluation, Post Oak Urgent Care provides walk-in care for adults and children.

Post Oak Urgent Care
14522 S Post Oak Rd, Unit 203B
Houston, TX 77045
Call: (832) 306-3031

Walk-ins welcome for non-emergency medical concerns. 1. Back to School Illnesses in …

Medical Disclaimer

This content is provided for general educational and informational purposes only and is not intended as medical advice, diagnosis, or treatment. Reading this content does not create a provider-patient relationship. Always consult a qualified healthcare professional regarding symptoms, medical conditions, medications, testing, or treatment.

Do not delay professional medical care because of information presented on this website. For a medical emergency or potentially life-threatening symptoms, call 911 or go to the nearest emergency room. Available services, testing, treatments, age limitations, and insurance participation may vary and are subject to clinical evaluation.