Skin problems, ranging from mild acne to skin cancer, affect people of all ages. Learn more about skin problems at HowStuffWorks.
  • Baby Skin Problems
  • Beauty Skin Problems
  • Medical Skin Problems
  • Treating Skin Problems
Do you know how to take care of your skin?

Sweat stains are already a pain to get out of shirts, but imagine how difficult it would be if your perspiration came in rainbow colors. What brings on a case of red (or blue or black) sweat?

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