2. Lemon juice
It possesses bactericidal and anti-inflammatory properties. Thus, it can help in reducing inflammation around the acne-affected area. Squeeze the juice from half a lemon and soak a cotton swab in it and apply it to your acne lesions. You can also scrub half a lemon directly all over your back. Leave the lemon juice on for about 30 minutes, after which you can wash it off. You can do this once a day.