Mouth sores in a 2-year-old?

Mouth sores are common in 2-year-olds. Most common causes:

• Hand-foot-mouth disease (Coxsackie virus): Starts with fever, then small blisters in the mouth, plus a rash on palms and soles.
• Canker sores (aphthous ulcers): Usually one or a few, with white/yellow center and red rim—very painful. Triggered by stress, minor injury (from hard food or toothbrush), or vitamin deficiency.
• Herpetic gingivitis (HSV-1): Swollen gums, redness, widespread small blisters, high fever, fussiness, foul breath. More severe if it's a first infection.
• Throat infections (tonsillitis, pharyngitis): Red sore throat, sometimes small blisters along with it.

When to see a doctor: Fever lasting over 48 hours, baby unable to drink/constantly crying, sores not healing after 10 days, signs of spreading or infection, or draining/inflamed spots.

Home care: Offer cool, soft foods (yogurt, banana, cold milk), avoid acidic/hard/salty foods, encourage plenty of fluids. A soothing mouth gel (as recommended by your pediatrician) or age-appropriate acetaminophen/ibuprofen can help—check dosing with your pharmacist or doctor.

*Note: This is general guidance, not medical advice; consult your doctor about medication and dosing.*