You are able to gift 5 more articles this month. Anyone can access the link you share with no account required. Learn more. DEAR DR. ROACH: I received the pneumonia vaccination (Pneumovax 23) two ...

Medically reviewed by Jurairat J. Molina, MD Key Takeaways Food allergy symptoms can start quickly after eating and may last from minutes to a couple of days.Seasonal allergy symptoms can last for ...

Please provide your email address to receive an email when new articles are posted on . Eleven patients reported 22 reactions during intradermal testing. Nine of 11 patients displayed cross-reactivity ...

DEAR DR. ROACH: I received the pneumonia vaccination (Pneumovax 23) two weeks ago, and I was OK immediately afterward, apart from having a sore arm for a day. But I have felt extremely tired in the ...

A mango allergy can cause mouth itching, hives, vomiting, or breathing issues shortly after exposure. A person may also experience a delayed reaction, such as a rash around the mouth or eye swelling.

Please provide your email address to receive an email when new articles are posted on . Delayed hypersensitivity to vaccines is not uncommon but also does not typically contraindicate further ...

A hypersensitivity reaction happens when the immune system mistakenly identifies harmless substances as harmful. There are several types of hypersensitivity reactions, depending on the class of ...

Corticosteroid hypersensitivity reactions are an uncommon yet clinically significant phenomenon that can pose challenges in the management of patients requiring steroid therapy. These reactions may be ...

People with a history of allergic-like reactions to iodinated contrast media, which is used in a variety of X-ray-based procedures, such as CT and angiography, are susceptible to similar reactions ...

Rheumatoid arthritis is associated with an atypical immune response called a type 3 hypersensitivity reaction. This reaction happens due to immune complexes in the body. It can be treated by ...

Dear Dr. Roach: I received the pneumonia vaccination (Pneumovax 23) two weeks ago, and I was OK immediately afterward, apart from having a sore arm for a day. But I have felt extremely tired in the ...