What Does a Non-Healing Sore Feel Like With Keratoacanthoma?

Keratoacanthoma can appear as a firm, rapidly changing bump with a central crust or plug. The surface may feel rough and the surrounding skin may be red, tight, or sore. It can bleed after rubbing or catching on clothing. Some lesions are more itchy than painful, while others are sensitive even with light contact. Sore That Will Not Heal is a common presentation of Keratoacanthoma, but a persistent sore can have several explanations. Keratoacanthoma and some skin cancers can look alike, so appearance alone cannot settle the diagnosis.

Arrange a prompt dermatology review rather than squeezing, scraping, or trying to remove the central crust. Keep the area clean, cover it lightly if clothing rubs it, and protect nearby skin from sun. Note when it appeared, how quickly it changed, whether it bleeds, and any tenderness. Do not apply harsh acids or leftover prescription creams unless a clinician directs you.

Seek prompt assessment for a sore that enlarges, becomes firmer, bleeds, or develops increasing pain. Get urgent help if bleeding continues despite firm pressure, or if there is spreading redness, warmth, drainage, or fever. A lesion near the eye, nose, mouth, or ear should be reviewed without delay because location can affect treatment decisions.

Does this lesion need a biopsy or removal? What other conditions can resemble it? How should I protect the sore from rubbing? Which changes should prompt urgent contact?