As a guide to Azathioprine allergies and reactions, it's important to understand that Azathioprine is a medication used to suppress the immune system, often prescribed for autoimmune diseases or after organ transplants. Some people may experience an allergic reaction to this drug, which can include symptoms like rash, difficulty breathing, or swelling. It's crucial to consult your doctor if you suspect an allergy and to follow their advice for managing the condition. In some cases, a lower dose or alternative medication may be recommended. Overall, staying informed and communicating with your healthcare provider is key to safely managing an Azathioprine allergy.