Types of Allergies

Allergy is caused by specific agents which are called allergens. They could be everything in the environment from foods to pollens and dust or chemical substances. This article is going to take a look into different types of allergies determined by various allergens.

allergy types

Food Allergies and Food Intolerance

If you are allergic to a certain food, your body will react when it gets in touch with it. In case of severe allergies, you can develop a severe allergic reaction even if you touch the food and not swallow it. Peanuts are among the worst allergens, so people who are allergic to them need to be aware that they could even get killed if they ingest even a very small amount. Food intolerance is not a life threatening condition, but it is far from being pleasant, as well.

Milk Allergy

If you are allergic to milk, you should avoid all dairy products and even those foods that contain tiny amounts of lactose. Such information is usually mentioned on the label, so you should make a habit from reading those labels before buying foods that may cause you harm.

Food allergies

Egg Allergy

The most affected by egg allergies are usually the children. Egg whites are more prone to cause allergies than the yolks and the allergic reactions they trigger may range from mild to life threatening.

Wheat Allergy

This is one of the worst food allergies possible. It may trigger anaphylaxis, eczema, allergic rhinitis and bronchospasm, so it is important to get diagnosed as early as possible in order to be able to stay away from all wheat-based products.

Peanut Allergy

If you have an allergy to nuts, you need to stay away from all kinds of nuts, including peanuts, cashew or walnuts. You won’t be allowed to eat any sweets or other foods that contain peanuts, so always read the labels to see if there are nut traces in the foods you wish to buy.

Fish Allergy

Unfortunately, there aren’t specific tests to determine the exact type of fish you are allergic to. Your doctor may recommend you stay away from all fish and sea food.

Sulfite Allergy

Sulfites are preservatives that may be added to certain foods with the purpose of avoiding them from going bad too soon. If you are allergic to these substances, you’ll have to avoid all foods that contain them.

Soy Allergy

If you are allergic to soy, there’s a high probability you are also allergic to beans such as navy beans, kidney beans, lentils, pinto beans or chickpeas. You can determine which of them triggers you an allergic reaction by eliminating it from your diet for a few weeks, then add it back and watch closely your symptoms.

Casein Allergy

Casein is a protein that is contained in milk, so you’ll need to avoid all milk-based products if you are allergic to it.

Pet Allergies

Pet allergy

Dog Allergy

If you suffer from dog allergy, life could be very hard for you, as about 40% of all households in the US have at least one dog. If you love dogs, it will be even harder. You have the solution to get a special breed of dog that doesn’t cause allergies, though, if you really can’t imagine your life without your four-legged friends.

Cat Allergy

Cat allergies are quite frequent. You’ll probably know if you suffer from it, because you’ll suddenly start sneezing and your eyes will get watery in the presence of a cat.

Other Allergies

Hay Fever

Hay fever is a seasonal allergy. It has its worst manifestation in spring, when all pollens start spreading in the air from all blossoming trees and other plants. It manifests again in the fall, when seasonal trees blossom again. Some people may develop hay fever symptoms all year round, if they are allergic to different types of pollens from flowers that blossom in different times. Hay fever is also known as allergic rhinitis.

Allergic Conjunctivitis (Pink Eye)

Pink eye

Allergic conjunctivitis is not contagious and it doesn’t pose a very high health danger. It is usually painful, so it gets diagnosed and treated in its incipient stages, thus being easier to cure than silent conditions that become obvious when it is already late.


Hives or urticaria are swollen red bumps or patches that appear on the skin out of the blue. They can be a symptom of allergy or may have other causes, so they need to be investigated by a doctor.

Allergies to Poison Ivy, Oak, and Sumac

All these plants contain a substance called urushiol, which is a powerful allergen. When coming in contact with the skin, urushiol may cause an itchy rash accompanied by more or less severe allergic reactions. The symptoms may appear either immediately after getting in contact with the substance or after a few hours or even days.

Allergies to Insect Stings

Insect stings cause severe allergic reactions that may threaten the life of the sufferer. It is a must to get diagnosed as early as possible, because you may need to carry an epinephrine pen with you for the rest of your life, so you can get the antidote immediately after being stung. A few seconds can make the difference between life and death, so treat this allergy very seriously.

Mold Allergies

Such allergies may pass unnoticed, but in case the exposure is frequent and intense, you may develop symptoms that will make you see a doctor.

Pollen Allergy

The only thing you can do if you suffer from allergies to pollen is to take antihistamines and hope pollens won’t be too long in the air.

Source: WebMD

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