Hi sorry to hear you are having problems with your skin and hrt, definitely don't use moisturiser before applying the gel it will prevent proper absorption, i used to get a very itchy raised rash when using the patches, Im on gel now it doesn't cause a rash for me but it has caused very dry itchy skin, you could ask your doctor for lenzetto spray which involves using only a small area on the inner forearm, 4 pumps of gel is alot of gel to put on if its causing skin irritation, can't offer you a solution for the irritated skin, probably wise to switch to the lenzetto spray see if that works better with your skin.