keratosis
"I had been to the dermatologist for treatment to my lower lip diagnosed as Actinic Keratosis. Initially, he sprayed it with Liquid nitrogen and prescribed Solaraze gel. I used this gel for about  2 months twice daily on the lip. I must mention that there absolutely no effect of this medication on my lip. A total waste of money if you don't have insurance as it can be quite expensive without it. 



Then I was prescribed all sort of other creams which was nothing but a waste of money on moisturizers. Don't feel bad to question the dermatologist as to what the cream does and whether it will cure you. The most essential treatment for single or isolated AKs is  cryotherapy - liquid nitrogen spray."