Having an allergic reaction can affect your nose, lungs, throat, sinuses, ears, lining of your stomach, or skin. Delayed reactions, or allergic contact dermatitis, is the most common type of allergic ...

In even rarer cases, people with a penis who produce semen can be allergic to their own seminal fluid—a condition called post-orgasmic illness syndrome. Symptoms of this condition can happen within ...

Contact allergies occur when an allergen touches a person’s skin. The symptoms of this type of allergy are usually confined to the area of contact with the skin. Common irritants include ...

While you may be aware of more common outdoor allergies, you may not know that plenty of things in your home could be causing ...

Research suggests that introducing kids to food allergens early in life can help—but that the same might not be true for ...

The skin is then examined for any signs of a hypersensitive reaction. Image Credit: Neeila/Shutterstock.com Patch testing detects allergic contact dermatitis, a type IV hypersensitivity reaction.

In some cases, a dermatologist can diagnose the type of dermatitis just by looking at the skin. If there’s reason to suspect you might have an allergic reaction to something, your doctor might ...

In the skin, this is known as allergic dermatitis. However, allergies can take many forms throughout the body depending on the type of substance and where the body comes into contact with it.