How do you remove seborrheic keratosis?

Destruction. These can be scraped off the skin but will usually return. They can be inhibited sometimes with topical corticosteroids but most often they are removed by freezing the area with liquid nitrogen (superficial destruction) which then forms a scab like area which falls off as it heals.
Seborrheic keratosis. Methods used to remove seborrhoeic keratoses include: cryotherapy (liquid nitrogen) for thinner lesions curettage & cautery laser surgery shave biopsy (shaving off with a scalpel).