Anaphylaxis is a serious, potentially life-threatening allergic reaction that can affect several organ systems in the body and may threaten breathing and blood circulation. The most common causes of ...

Skin rashes can have many different causes, one of which is medications. The symptoms of drug-induced skin reactions can range from a mild itchy rash to more serious reactions, such as widespread ...

Methotrexate is a generic drug prescribed to treat certain types of cancers, arthritis, and psoriasis in adults and some children. As with other drugs, methotrexate can cause side effects, such as ...