An allergy is an immune system malfunction that causes the body to have a hypersensitive reaction to a normally day-to-day substance. There are different types of allergy; nasal allergy, asthma allergy, food allergy, insect allergy, skin allergy but one may be reacting to only one type or some among all the allergies. One may be allergic to food, pollen, dust, insects, etc. So it is better to first test for the substance causing the allergy.

An allergy test of one form or another is often needed to determine which substance is causing the adverse reaction, if the problem seems to be originating from a food an allergy test may reveal that the individual is not allergic to the suspected food but to a certain element present in the food.

Although there are many allergy testing methods used to determine the presence of allergens, but the three most common allergy testing procedures are skin tests, elimination tests, and the radioallergosorbent test (RAST). It is seen that the accuracy of these tests varies widely and even the same test performed at different times may yield different results. It is also possible for a person to react to a substance during testing but no reaction in normal exposure.

Allergy skin testing is the most used of the three methods but it varies in methodology. With the scratch test a small amount of the suspected allergen is placed on the forearm or upper arm and then introduced under the surface by scratching or pricking. The skin is then observed for swelling or redness. Skin tests are useful in detecting respiratory allergies, penicillin allergy, insect allergies, and food based allergies.

Food allergies are also often investigated via an elimination diet. Suspect foods are removed from the diet for several weeks and then re-introduced one at a time with the person monitoring their reactions. The radioallergosorbent or RAST test is performed in a laboratory and tests for specific amounts of Immunoglobulin E (IgE) antibodies that will be present in the blood during a true allergic reaction.

There are many allergy products on the market that relieve you from common allergies and usage of these allergy care products or allergy control products at first sign of allergy will help relieve the symptoms sooner. These allergy relief products are being used as a preventive according to the symptoms found from the allergy tests. Being aware of what each one are will ensure that you choose the medication, which will eliminate your allergy symptoms.

Some of the top allergy relief products on the market are elaborated in the following paragraph.

Nasal sprays are medicinal sprays that help clear nasal passage and soothe dry irritated nasal passages. This spray can be used with cold, allergy, and sinus medications. They are alcohol free and non-medicated, and non-habit forming too.

Nasal strips help relieve nasal congestion due to colds and allergies, in addition to that they also help reduce snoring.

Nasal gels used to relive irritation in the dry nose, these gels soothe the chafed and dry skin of the nose.

Vacuum cleaners and dusters are products that are capable of capturing and removing allergens such as dust mites, and the most allergy causing particles. They are used to clear the dust from our surroundings of the room floor, walls and from furniture that cause allergy.

Air filters are disposable adhesive filters with the inside coated with a liquid adhesive that captures dust particles and lint. Air filters are generally made of metal or various fibers.

Dehumidifiers are special devices to remove moisture from atmosphere to reduce humidity. These devices are very helpful in treatment and controlling of respiratory disorders such as asthma, or bronchial allergies. Many portable dehumidifiers are available in the market.

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