Learn how to get rid of acne using homemade remedies. Acne is a skin disease caused by an inflamation of the sebaceous glands. The sebum mixes with dead cells on the surface of the skin, clogging the pores. The major contributing factors are processed foods, the excess of sugar and milk, as well as high-fat meat and nuts. Since diet plays a large part in acne problems, the first step is to make dietary changes.