Symptom: Stinging Sensation

What Is a Mouth Ulcer? Painful Oral Sore & What It Means

Written by: Soo Xuan Jay (PRP), 10th of May 2026 What Is It? A mouth ulcer is a small sore or break in the lining inside the mouth. It may appear on the inner lips, cheeks, tongue, gums, soft palate, or floor of the mouth. Most common mouth ulcers are not dangerous and are not […]

What Is a Cold Sore? Contagious Lip Blisters & What They Mean

Written by: Soo Xuan Jay (PRP), 9th of May 2026 What Is It? A cold sore is a small, painful blister or cluster of blisters that usually appears on or around the lips. It is most commonly caused by the herpes simplex virus type 1, often shortened to HSV-1. HSV-1 is the most common cause, […]

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