Today's time there are many tests invented by scientists & doctors to cure allergies. Doctors first recommend related test to patients & than cure by related medicines. The most common allergy is asthma. There are many people suffering by this allergy due to pollution. Nitric oxide is a biomarker for inflammatory mediators that reflect activity of the eosinophils, which are the main markers for severity of inflammation in asthma? The definitive test is a BAL (bronchialalveolar lavage) of eosinophils, which correlates with effectiveness of inhaled steroids. FeNO (fractional exhaled nitric oxide) can now be measured by portable devices such as the mini portable meter or the aperion device. Levels above 20 parts per billion are correlated with non control of asthma.

Recently test found that, nitrous oxide has been used to measure the level of inflammation in asthmatics?. With the use of special censors, the patient's level of inflammation can be determined with a thirty second breathing pattern. Inhaled steroids control the inflammation and deliver the drug to the site of the disease without a large amount of systemic absorption.

Currently, there is no adequate test for penicillin allergy. One needs to test with both penicilloylpolylysine and PPL to test the major determinants, and an MDM (minor determinant mixture) to check for fatal reactions. Sulfur is the second most common drug allergy in general medicine. Sulfur is present in water pills, celecoxib, bactrim and azulfidine anti-arthritic drugs. The most common manifestation of an IgE allergy to sulfur is a maculopapular rash.

In addition nasal saline with several companies such as ENTSOL and Neilmed provide a wash that is capable of restoring the nasal cilia. It helps the hairs in the nose to continue to dispose of the mucous in a coordinated way. All of these measures are incorporated into the new asthma guidelines published by the National Institute of Health to judge the severity of asthma.