oral ulcer

Label ages vary. Examples from product labels include 18 years and up, 5 years and up, and 2 years and up.

Products protect sores in several ways: by forming a film or coating over the sore, using hydrocolloid patches, keeping an anesthetic in contact with the lesion, or using stick‑on melts that adhere for hours.

Adhesive patches and similar stick‑on treatments are designed to stay in place for hours. Some stick‑on melts are noted to adhere for about 2–4 hours.

They primarily provide pain relief via numbing anesthetics, protection from films or patches, cooling/soothing agents like menthol, reduction of germs, and ingredients intended to support healing.