Rosacea is an inflammatory skin disease that causes redness and rash, usually on the face. You may also have eye problems. The disease does not infect. The rashes usually go away with treatment, but they can come back.
A pilonid cyst often appears as a warped bulge. It sits in the middle of the back end just where the buttocks split.
Perioral dermatitis is a skin disease that causes redness, small bumps and rashes around the mouth. The disease may be caused by, for example, prolonged use of strong cortisone cream, excessive washing or makeup. The disease goes over but it may take time.
A lump in the chest can be due to many things that are harmless. But sometimes a lump can be cancer. Therefore, you should always have a doctor examine a new lump. The risk of cancer is higher the older you are.
Oils in the skin consist of fat tissue and are harmless. You can get fat tuber anywhere on the body. Most lumps are small and do not cause any problems, but sometimes they can get bigger and hurt or feel uncomfortable.
Acne, often called pimples, is a rash that is caused by inflamed sebaceous glands. Acne is common and completely harmless. Often, acne occurs on the face, chest and back where you have the most sebaceous glands. Acne is not due to poor hygiene. It is possible to get rid of acne, although it may take some time.