Allergies can be effectively treated with which of the following?

Antihistamines are specifically designed to counteract the effects of histamine, a compound released during an allergic reaction. By blocking histamine receptors, antihistamines help reduce symptoms like sneezing, itching, and runny nose, making them a primary treatment option for a variety of allergies, including seasonal allergic rhinitis and food allergies. Their ability to alleviate symptoms quickly and effectively makes them a cornerstone in allergy management.

Other treatment options listed, such as antivirals, are aimed at treating viral infections and would not provide relief from allergy symptoms. Analgesics, while useful for pain relief, do not address the underlying causes of allergies or the symptoms caused by histamine release. Vaccines are typically associated with immunization against infectious diseases, and while there are allergy immunotherapy treatments available, they are not the same as traditional vaccines and are not used as a first-line treatment for immediate symptom relief.