What Are Antihistamines Prescribed For?

Hello and thank you for using healthcaremagic. Antihistamines, as the name suggests, are used to target histamine which are an important chemical mediator of allergic reaction. antihistamines act best when they are given before exposure to allergy causing agent or environment. if the histamine is mot released, then most of the allergic reactions dont occur or reduce in severity. depending on the type of antihistamines, different side effects can be seen such as sleepiness(avoid driving after taking a antihistamine), nevousness etc. decongetants are simply medicines which prevent the stuffiness and running of nose which is common with most of allergic condition. decongestants are to be avoided in a patient with cardiac problem, prostatic enlargement. chronic use of decongestants can lead to rebound increase in nasal congestion. so it is always advised to take decongestants in short intervals both are availabe as, tablets, syrups, drops formulation, mostly as over the counter drugs. but it it should be understood that neither of the above cure allergies, but they help to control the effet of an allergic reaction or common cold to some effects. i hope i have been able to provide relevant information regarding your query. feel free to ask any other questions . thank you.