IRCT20190928044912N1 IRCT 2021-04-23 Tehran University of Medical Sciences Evaluation of treatment of actinic keratosis with hydrogen peroxide Evaluation of treatment of actinic keratosis with 35% hydrogen peroxide in comparison to cryotherapy 2019-07-23 anticipated 25 Complete https://irct.ir/trial/43264 interventional Randomization: Randomized, Blinding: Single blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment, Randomization description: Each patient's side drugs application is selected by using Block Randomization & Finally, two dermatologists will blindly examine the dermographic and dermoscopic photographs and determine the extent of lesion healing based on the dermoscopic manifestations, Blinding description: In this study, two dermatologists will blindly examine dermographic and dermoscopic photographs and compare the therapeutic effects and side effects of these two methods, as well as Each patient's side for drug's application is selected by using Block Randomization. 2 actinic keratosis. Intervention group: Hydrogen peroxide 35%,in each session: 20 secconds of application for 4 times, at least 3 session with 21 days interval. Undecided - It is not yet known if there will be a plan to make this available Justification or reason for indecision in sharing IPD is No more information