This effect is not unique to alcohol but can also occur with long-term use of drugs which have a similar mechanism of action to alcohol such as the benzodiazepines, which are sometimes prescribed as tranquillizers to people with alcohol problems.
The topic of allergies has become routine in our lives, and certainly most everyone has an idea of what an allergy is. Allergies are so common a subject in fact, it seems acceptable to discuss your allergies at a cocktail party with strangers. An allergy is an abnormal reaction by a person's immune system against a normally harmless substance.
Asthma and allergies go hand in hand. An allergic response occurs when your immune system mistakenly identifies a harmless substance such as pollen or dust as a dangerous invader. Antibodies attack the allergen in an attempt to protect your body from the substance.