There are 39 conditions associated with excessive sweating and skin rash. The links below will provide you with more detailed information on these medical conditions from the WebMD Symptom Checker and help provide a better understanding of causes and treatment of these related conditions.
Sunburn is often associated with a rash that begins as a small, pink patch on the skin or a mole-like spot than then start spreading out. The rash appear within 12 to 24 hours after exposure to UV rays and can be particularly worse if you are under certain medications such as Doxycycline.
What causes sunburn like rash on chest, upper arms, and thighs which is also accompanied by purple, swollen feet and ankles? Get physical exam: Rashes and skin discolorations are the result of many diseases, medications, and conditions. You must be evaluated by medical doctor for this problem.