A pimply rash on your buttocks can have many causes. It may be the result of the skin being irritated by tight clothes or bicycle riding. It may also be due to an allergic reaction, chemical irritant, ...

Contact dermatitis is a common cause of a rash in one area. This is especially true of a small rash that will not go away. Contact dermatitis usually starts as raised red spots. It can change to ...

Cutaneous candidiasis is a yeast infection that affects the skin and causes a red rash accompanied by dry and scaly patches of skin. Sometimes, these scales will ooze pus or become crusty. Although ...