02
Oct
Allergic Reaction Rash Medical Description. Allergic reactions often cause rashes. Drug reactions are another common allergic cause of rash. Common symptoms of an allergic reaction include. This reaction can occur when the immune system attacks a normally harmless substance the allergen.
Drug rashes and reactions happen for several reasons including. The hypersensitive response of the immune system of an allergic individual to a substance. Sneezing and an itchy runny or blocked nose allergic rhinitis itchy red watering eyes conjunctivitis wheezing chest tightness shortness of breath and a cough. Drug reactions are another common allergic cause of rash. Wheals are a common manifestation of hypersensitivity to drugs stings or bites autoimmunity and less commonly physical stimuli including temperature pressure and sunlight. When an allergen enters the body it causes the bodys immune system to develop an allergic reaction in a person with an allergy to it.
Many rashes itch such as those that often develop after an allergic reaction but some rashes are painful or cause no symptoms.
The word rash refers to changes in skin color such as redness andor texture such as bumps or swelling. And viral infections like measles can also result in rashes. Common symptoms of an allergic reaction include. Drug rashes and reactions happen for several reasons including. A rash could mean nothing. The word rash refers to changes in skin color such as redness andor texture such as bumps or swelling.