Which type of medication is often effective in alleviating short-term allergic reactions?

Antihistamines are medications specifically designed to counteract the effects of histamines, which are chemicals released by the immune system during an allergic reaction. When an allergen is encountered, histamines can cause symptoms such as sneezing, itching, runny nose, and hives. Antihistamines work by blocking the histamine receptors in the body, thereby reducing these allergic symptoms effectively.

In contrast, decongestants are primarily used to relieve nasal congestion and may not directly address the wider range of symptoms that can occur during allergic reactions. Antidepressants target mood disorders and do not have a role in treating allergies. The term "allergists" refers to medical professionals who diagnose and treat allergies, rather than being a type of medication. Thus, antihistamines are the most suitable choice for alleviating short-term allergic reactions due to their specific action against histamines and related symptoms.