Sores in my mouth

Aphthous ulcers are often shallow, painful lesions on movable mucosa, while trauma tends to match a mechanical irritant. Herpes viruses commonly affect particular sites, and Candida can cause wipeable or persistent changes in the mucosa. Nutritional deficiency, immune conditions, medicines, and systemic illness can also be relevant.

Avoid the suspected irritant, choose soft foods, drink fluids, and use a soft toothbrush. Do not pick the lesion or apply caustic chemicals. A pharmacist or dentist can advise on a suitable protective or pain-relieving product after considering your health history. If a sharp tooth, denture, brace, or filling is rubbing the area, arrange correction rather than repeatedly covering the injury.

Seek prompt assessment for a sore lasting longer than expected, recurring frequently, becoming larger, or accompanied by fever, weight loss, neck swelling, difficulty swallowing, or reduced immunity. A persistent red, white, firm, or bleeding patch needs examination. Breathing difficulty, severe facial swelling, or inability to drink requires urgent medical care.

Ask what the lesion looks like, what may have caused it, and whether an examination or swab is needed. Ask how to protect the area while it heals and which medicines fit your medical history. Ask what duration or change should trigger a review and whether an irritant such as a tooth or appliance needs correction.