Stomatitis (Child)

Causes

There are many causes of stomatitis. The most common is viral infections. Other common causes include:

• Injury or irritation of the mouth lining.

• Fungal or bacterial infections.

• Using tobacco.

• Irritating foods, such as citrus fruit or spices.

• Irritating chemicals, such as toothpaste or mouthwash.

• A lack of certain vitamins, including vitamins B and C.

• A weakened immune system.

Symptoms

Stomatitis can cause a variety of symptoms, including:

• Redness inside the mouth.

• Sores (ulcers) in the mouth.

• Pain or burning.

• Swelling.

• Fever.

Treatment

For a viral infection, usually only the symptoms are treated. Antibiotics do not kill viruses. They are not advised for this condition. A viral infection should go away within 7 to 10 days.

Home care

• Use a local numbing solution for pain relief. Ask the pharmacist for suggestions on which brand and strength is best for your child. You may apply this directly to the sores with a cotton swab or with your finger. Use the numbing solution just before meals if eating is a problem.

• Older children may rinse their mouth with warm saltwater (½ teaspoon of salt in 1 glass of warm water). Make sure they spit the rinse out and don’t swallow it.

• Feed your child a soft diet, along with plenty of fluids to prevent dehydration. If your child doesn't want to eat solid foods, it's OK for a few days, as long as they drink lots of fluids. Cool drinks and frozen treats are soothing. Don't give your child citrus juices, such as orange juice or lemonade or salty or spicy foods. These may cause more pain in the mouth.

• Follow the doctor's directions on using over-the-counter pain medicines, such as acetaminophen for fever, fussiness, or pain. In babies older than 6 months, you may use children's ibuprofen. Talk with the doctor before using these medicines if your child has chronic liver or kidney disease or has ever had a stomach ulcer or digestive bleeding. Do not give aspirin to children or teens unless your child’s doctor says it is safe. Aspirin can put your child at risk for Reye syndrome, a rare but serious condition.

• Children should stay home until their fever is gone and they are eating and drinking well.

Follow-up care

Follow up with your child’s doctor, or as advised.

If a culture of the sore was done, you will be told if the treatment needs to be changed. You can call as directed for the results.

Call 911

Call 911 if your child has:

• Trouble breathing.

• An inability to swallow.

• Extreme drowsiness (trouble waking up), fussiness or confusion .

• Fainting or loss of consciousness.

• A rapid heart rate.

• A seizure.

• A stiff neck.

When to get medical advice

For a usually healthy child, call your child's doctor or get medical care right away if:

• Your child has a fever (see Fever and children, below).

• Your child can't eat or drink due to mouth pain.

• Your child shows symptoms of dehydration. This may include no wet diapers for 8 hours, no tears when crying, sunken eyes, or a dry mouth.

Fever and children

Use a digital thermometer to check your child’s temperature. Don’t use a mercury thermometer. There are different kinds and uses of digital thermometers. They include:

• Rectal. For children younger than 3 years, a rectal temperature is the most accurate.

• Forehead (temporal). This works for children age 3 months and older. If a child under 3 months old has signs of illness, this can be used for a first pass. The doctor may want to confirm with a rectal temperature.

• Ear (tympanic). Ear temperatures are accurate after 6 months of age, but not before.

• Armpit (axillary). This is the least reliable but may be used for a first pass to check a child of any age with signs of illness. The doctor may want to confirm with a rectal temperature.

• Mouth (oral). Don’t use a thermometer in your child’s mouth until they are at least 4 years old.

Use a rectal thermometer with care. Follow the product maker’s directions for correct use. Insert it gently. Label it and make sure it’s not used in the mouth. It may pass on germs from the stool. If you don’t feel OK using a rectal thermometer, ask the doctor what type to use instead. When you talk with any doctor about your child’s fever, tell them which type you used.

Below is when to call the doctor if your child has a fever. Your child’s doctor may give you different numbers. Follow their instructions.

When to call a doctor about your child’s fever

For a baby under 3 months old:

• First, ask your child’s doctor how you should take the temperature.

• Rectal or forehead: 100.4°F (38°C) or higher

• Armpit: 99°F (37.2°C) or higher

• A fever of ___________as advised by the doctor

For a child age 3 months to 36 months (3 years):

• Rectal or forehead: 102°F (38.9°C) or higher

• Ear (only for use over age 6 months): 102°F (38.9°C) or higher

• A fever of ___________ as advised by the doctor

In these cases:

• Armpit temperature of 103°F (39.4°C) or higher in a child of any age

• Temperature of 104°F (40°C) or higher in a child of any age

• A fever of ___________ as advised by the doctor