The citric acid of lemon juice also acts as an antiseptic homemade facial masks for pimples can help reduce the number of bacteria that are living inside or on top of your skin. What moisturizer can i use? Mix in 1 teaspoons of ACV into a cup of warm water. Mix salt in water and leave it on for 20 minutes. You should use these masks on clean, dry face. Yogurt further helps to homemade facial masks for pimples and soothe inflamed skin, and it contains lactic acid that helps lighten skin and fade acne scars. Use this face mask every other day to successfully treat your acne and minimize or fade acne scars. It depends on your skin type. Salicylic acid present in mint helps in curing acne. Before you apply a mask, make sure your skin is thoroughly clean and your pores are open.