Sarcoidosis symptoms that appear on the skin include a bumpy rash, open sores, skin color changes and the growth of nodules, according to Mayo Clinic. About 25 percent of people with the disease have skin problems.
A sarcoidosis rash is typically a red or purplish reaction on the shins or ankles, explains Mayo Clinic. The skin feels warm, and it is sometimes painful when touched. Sores usually show up on the nose, cheeks or ears. Patches of skin turn darker or lighter. Skin growths erupt near scars or tattoos.
The name "sarcoidosis" is created from Greek words that mean "flesh-like," MedicineNet states. This refers to the nodules that commonly occur.