An allergen is an otherwise harmless substance that causes an allergic reaction. Allergic rhinitis, or hay fever, is an allergic response to specific allergens. Common symptoms are runny nose, sneezing, and itchy eyes

Allergic Rhinirit

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15-09-2017

Not all cases of prolonged cough are asthma. Being vigilant in diagnosing asthma is very good, but it should be noted that a diagnosis of asthma is a diagnosis of exclusion.