Clinical

Allergic contact dermatitis is an itchy rash that forms after your skin touches a harmless substance. One common trigger of contact dermatitis can be nickel.1,2 An allergy happens when the...

Iron is a mineral found in all our bodies. For some conditions, people may need extra (supplemental) iron. However, in very rare cases, some people may have a reaction to...

Respiratory infections affect the nose, sinuses, throat, and airways. These infections can cause symptoms such as congestion, cough, and shortness of breath.1 For people who live with certain chronic medical...

Most people develop allergies as children or young adults. It is also common for young people to grow out of allergies. For example, many babies with milk allergies outgrow them.1,2...

Even for people who have been living with eosinophilic esophagitis (EoE) for years, the condition can present challenges at any time. New questions may arise about diagnosis, treatment, general well-being...

Eosinophilic esophagitis (EoE) is a condition that affects the esophagus. The esophagus is the tube that moves food from your mouth to your stomach after you eat. In people with...

Exercise-induced anaphylaxis is a rare, and serious, allergic reaction. It is a severe allergic reaction that is caused by exercise. It is typically caused by medium- or high- exertion activities...

Aquagenic urticaria is a very rare condition where people have an allergy to water. Urticaria is a term that means hives or a rash. With aquagenic urticaria, people develop hives...

In people with eosinophilic esophagitis (EoE), inflammation causes damage to the esophagus, the tube that carries food from the mouth to the stomach. This damage is the result of an...

Atopic march is the medical term used to describe the history and progression of allergic diseases throughout a person’s life. It is also called the allergic march. The atopic march...

Cold urticaria is a rare allergy that affects the skin. With cold urticaria, the skin reacts after cold exposure. People with cold urticaria can have different reactions. Most people will...

You might not think twice about which type of doctor to see for a cold or the flu. But what if you are dealing with allergies? Knowing where to start...

A latex allergy is an allergy to the sap from a rubber tree. This sap is used to make natural rubber, or latex products. This is why a latex allergy...

Some people may experience a sensitivity to sunlight called a sun allergy, or photosensitivity. There are several types of sun allergies. One rare type is called solar urticaria. About 4...

People with allergies may be used to symptoms that affect their eyes. But there is more than one condition that can cause these symptoms. Dry eye and allergic conjunctivitis are...

A soy allergy is an abnormal response of the body to soybeans or soy products. Soy is a common ingredient in many processed foods, such as infant formulas. Products like...

Eosinophilic esophagitis (EoE) is a chronic immune system condition that affects the esophagus. The esophagus is the tube that sends food from the mouth down to the stomach. EoE happens...

Skeeter syndrome is a type of mosquito allergy. The immune system of people who have this syndrome creates an extreme allergic reaction to mosquito bites. An unusually large inflammatory response...

Clinical trials are medical studies that pose a question: Does a new treatment work better than older treatments? Each year, thousands of treatments are tested in controlled experiments called clinical...

Clinical trials or studies have a language of their own. It helps to understand the common terms doctors use when talking about a clinical trial before you sign up. Here...