By:Jason Uvios If you are thinking that allergy is only a simple disease, you may be quite wrong. You may be afflicted by only one or two types of allergies. This may lead you to feel that allergies are limited to only those types. However, if you take a look around and see other people suffering from various other allergies you will soon realize that allergies are definitely not as simple as they sound. You will be flabbergasted to know the variety of the types of allergies that occur. Allergies can be roughly classified under three different categories. Almost all the varied kinds of allergies may be place under them. Let us take a look at the three different categories and the types that come under them. Inhalant allergies It is not always necessary that you have to be outdoors to inhale substances that you may be allergic to. These substances are airborne and may occur even indoors. You may be allergic to the scuff of animals like cats and dogs. Formaldehyde, rubber, molds, newspapers, pollen and various other articles may also be allergens. All these may lead to hay fever and cause effects like, sniffing, heavy head, headache, sneezing, etc. If inhalant allergies tend to take a more serious turn they may even lead to asthma. Contact Allergies This category includes skin allergies that may be caused due to contact with certain substances or even due to insect stings. The various substances that cause contact allergies could be nickel, sulfates, cosmetics, henna, metals, synthetic fabrics and various other things. Skin inflammation and itching are common signs of contact allergies. Such allergies may lead to hives or even serious ailments like atopic dermatitis that can be chronic in nature. Food Allergies If you feel an inflammation or an itching sensation in your mouth or food pipe after you have eaten a specific food you may have developed an allergy for. Troubled breathing, difficulty in swallowing, vomiting, etc., are some symptoms of food allergies. Similar allergies may be caused due to the intake of certain drugs too. Certain chemicals in these drugs may make your immune system react abnormally and thereby cause allergies. Once we know the things that we may be allergic to we can take preventive measures by avoiding inhalation, contact or consumption of those allergens. If you are thinking that allergy is only a simple disease, you may be quite wrong. You may be afflicted by only one or two types of allergies. This may lead you to feel that allergies are limited to only those types. However, if you take a look around and see other people suffering from various other allergies you will soon realize that allergies are definitely not as simple as they sound. You will be flabbergasted to know the variety of the types of allergies that occur. Allergies can be roughly classified under three different categories. Almost all the varied kinds of allergies may be place under them. Let us take a look at the three different categories and the types that come under them. Article Source: http://www.dailynewarticles.com Jason Uvios writes on the topic of "Allergies: Variety Galore" visit it: dogs and allergies, dog allergies and seasonal allergies. More Articles from Health Category: Keep A First Aid Kit Handy In Case Of An Emergency Annoying Inducing Mishaps Better Libido And Performance With Sexual Enhancement Herbs Will Depression Lead to Chronic Depression Problems? Mold Air Purifier:A Seasonal Threat School Nurses To Prescribe The Pill Can You Really Use Hypnosis To Quit Smoking? Are You Capable Of Learning Self Hypnosis? Birthing Around the World The Good And The Bad And The Basics Of Cholesterol Weight Loss Tips That Help You Create A Thin, Yet Healthy Body Going Up In Smoke Colon Cleanse: Why, How And When? What Is HEPA In An Air Purifier Cellulite Treatment Guide