My husband has had small facial papules for many years, some with a small indentation; now much more numerous, forehead & cheeks. Is it possible they are keratoacanthomas; he has very oily skin, reddish skin color. He has had them for 35 years, gradually increasing in number, beginning at his hat headband, now cheeks with numerous sun exposures.
Would a glycolic peel or Retin A help?