Allergy is a condition in which the body's immune system detects harmful foreign substances and reacts by causing reactions such as: rash, urticaria, ... Patients need to use allergy medicines to treat this condition. For people who often have allergic manifestations, the question many people ask is is it okay to take a lot of anti-allergy drugs?

Nasal decongestants are nasal drops or nasal sprays that are commonly used to relieve nasal congestion. However, overuse of nasal decongestants to treat nasal congestion should be avoided as this can have serious consequences.