Acne problem can cause by many reason. The most common will be the skin issue. However, some people have acne problem because of the environment. If you are staying in a not clean environment, for sure the percentage for you to have this problem will be higher, if compare to those who lived in a hygiene surrounding. Try to change your bed sheet and pillow cover at least once every 2 weeks. This will help. Besides, you can get the acne medicine from the skin specialist, if your condition is getting worse.