Conditions list medically reviewed by George Krucik, MD, MBA
A drug allergy is an allergic reaction to a medication. Find out how to know if you have one and what to do about it.
Lyme disease is an infectious disease that's transmitted to humans through tick bites. Learn how Lyme disease is diagnosed and treated, and learn how to prevent tick…
Learn about sarcoidosis and its causes, symptoms, diagnosis, treatment, and potential complications.
Graft vs. Host Disease (GvHD) is a reaction that develops after a bone marrow transplant when the donor and the recipient are different people.
This feature is for informational purposes only and should not be used to diagnose. Please consult a healthcare professional if you have health concerns.