allergy medicine

[zuhinaax]

What harm to health if eat allergy medicine every day? My wife's skin itches, and she has to eat allergy medicine everyday, now it has lasted for 3 years, now, her heart feel not good, I am not sure if it is because she eat allergy medicine too much. Please advise what harm it will do for a person who has eaten allergy medicine many years?
__________________________
external keyword tool