do not use that Cosderma at home. Unfortunately, you should have never purchased this and should probably throw it away and start again. Please go to a board-certified dermatologist with experience in cosmetic dermatology. You could honestly burn the heck out of yourself. In some cases this can lead to irreversible scarring. Throw it away and walk away from that small investment. Save your skin!!
Best of see dermatologist i
Am not big fan of self peeling especially after reading mad answering countless questions form people who have burned the,selves at home. You have to be especially careful with dark Asian skin. Please see a board certified Dermatolgist to plan comprehensive program to address your issues.