No one knows exactly what causes acne. Hormone changes, such as those during the teenage years and pregnancy, probably play a role. There are many myths about what causes acne.
Chocolate and greasy foods are often blamed, but there is little evidence that foods have much effect on acne in most people. Another common myth is that dirty skin causes acne; however, blackheads and pimples are not caused by dirt. Stress doesn’t cause acne, but stress can make it worse.

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.

Mix lemon juice with rose water. One lemon with same proportion of rose water will do. Apply it on your face and rinse it only after 30 mins. Constantly doing so will not only get rid of acne and pimples, but it also has the effect of lightening the skin blemishes.

Mix 1 tablespoon of sour cream ( 0% fat for oily face), 1 tablespoon of yogurt, 1 tablespoon of grind oatmeal and 3-4 drops of lemon juice. Apply on face, leave for 10 minutes and wash off.
Use a mask base powder, such as fuller’s earth or kaolin powder. Use distilled or filtered water to make a paste. Mix 1 heaped teaspoon of base powder to 3 drops of essential oil. Add approximately 2 tablespoons of the water in, to make a fluid yet balanced paste.

Cleaning your face by washing it in warm salty water will leave it oil-free without aggravating the acne. Cotton dipped in rose water maybe used for cleaning the skin and to remove the makeup, especially the oil-based one, since it’s responsible for acne outbreaks.

Zinc may also interfere with the absorption of magnesium and iron from food and supplements. It can interfere with the absorption of tetracycline and fluoroquinolone antibiotics and penicillamine. There is also some concern that a particular diuretic, amiloride, can reduce zinc excretion and lead to a toxic build-up in the body.

Try not to touch your face. It causes trauma to acne, just like picking pimples does. Tight sweatbands and chin straps from baseball caps and sports equipment can have the same effect.

Apply lime juice and rose water on the acne affected area and leave it for 30 minutes. Wash your face profusely with lukewarm water to get perfect cure for acne.

Make a paste of 3 tablespoons of honey and 1 teaspoon of cinnamon powder. Apply it on the pimples before sleeping and wash it next morning with warm water. Repeat for two weeks for permanently clearing acne.

Tomato can also be used for the treatment of blackheads and to open the pores of the skin. Cut the tomato and rub it on the skin. Leave on for fifteen minutes. Wash it off with water. This will reduce open pores and blackheads. This treatment is good particularly for oily skin.