Severe itching due to allergies can sometimes be remedied right at home, especially when it comes to allergic dermatitis. Also referred to as contact dermatitis, this type of allergy is a result of skin exposure to an allergen, which results in inflammation of the skin.

Your diet provides the necessary building blocks for the body to produce energy and maintain good health. A good diet, therefore, is the foundation of good health. Your food choices can have a significant impact on how well your body functions.

Dairy intolerance and dairy allergy are two different things, according to the National Digestive Diseases Information Clearinghouse. Dairy or lactose intolerance is a reaction to the sugars in milk. Your body either lacks the enzyme, lactase, which breaks down lactose or your body does not produce enough.

When children or adults don’t want to eat their carrots, carrot allergies rather than dietary preferences may be to blame. Allergic reactions to carrots and other foods create uncomfortable physical effects, some of which can be life threatening.

Banana allergy symptoms usually develop right after eating the fruit. Physical effects may involve mouth and gastrointestinal disturbances or may escalate rapidly into life-threatening anaphylactic shock.

Milk contains water, proteins, minerals, fats and carbohydrates (lactose is the milk sugar). Those who are allergic to milk have a reaction to the proteins, which in cow’s milk are whey found in the liquid portion and casein found in the solid or curd portion.

An allergy to eggs can cause a range of reactions, from a mild rash to severe breathing difficulty. Egg allergies often begin in infancy or early childhood. As you grow older, your body may adjust to the proteins in eggs that trigger allergies, and you may be able to enjoy these nutritious foods.

Sulfa drugs can cause allergic reactions in some people, including hives, swelling and difficulty breathing. If you've ever experienced a reaction to a sulfa drug, your doctor may have diagnosed you with a sulfa allergy.

Nighttime congestion is a common childhood problem, caused by the swelling of the tissues and blood vessels on the inside of the nose. According to the National Library of Medicine, most cases of congestion result from viral or bacterial infection and resolve on their own within a week.

An allergic reaction to an indoor/outdoor fungus such as Alternaria tenuis can occur at any time of year. Like exposure to other molds, inhaling the spores of Alternaria tenuis, also known as Alternaria alternata, causes hay fever–like allergy and asthma symptoms in some people.

Some people are unable to eat gluten, a protein found in barley, rye and wheat, without becoming sick. Gluten intolerance, known as celiac disease, is an autoimmune disorder that damages the digestive system. Intestinal bleeding has many causes and can be difficult to diagnose.

Hives or a rash are a common skim problem that can occur as a result of dry skin or a reaction to a food or medication. Although high doses of vitamin C don't usually cause these symptoms, a breakout of hives or a rash after taking a supplement or consuming a food with vitamin C may indicate an allergy.