Okay so it has been 4 full days since my at home peel with the 40% Glycolic acid. Now when I applied the acid initially it burned like hell!! (I had gotten a peel done about a week and a half before by an esthetician, however it didnt burn as much it was just a strong tingle then.) Even though it was very hot! It was not unbearable, i sat in front of my ac blowing on it to withstand the time....