The most common symptoms of herpes gingivostomatitis include:

• Mouth or tongue lesions:
• Blisters in the mouth
• Mouth ulcer
• Mouth or tongue pain
• Lip swelling
• Blisters on the lips

Additional symptoms of herpes gingivostomatitis may include:

• Bad breath
• Difficulty swallowing
• Difficulty eating
• Sore throat
• Swollen glands in the neck

Additional symptoms of herpes gingivostomatitis in infants may include:

• Excessive drooling
• Fever