http://www.grannymed.com/meds/acne.aspx How to Cure Acne with Natural Treatments Cook oatmeal and apply on face for fifteen minutes, then wash. Make a warm bath with blanch of nettle and rosemary to reduce the acne. Home remedy for acne: Apply equal amount of lemon juice and rose water with a cotton ball, leave for half an hour and wash. Repeat for 15-20 days. Rub the acne with garlic cloves several times a day. Natural remedy for acne with avocado: Wash face with avocado paste mixed with water.