What to expect from allergy medication for allergic rhinitis

Antihistamines reduce the effect of histamine, which contributes to sneezing, itching and watery discharge. A corticosteroid nasal spray reduces inflammation inside the nose and may be especially useful for persistent blockage. Some treatments work soon after a dose, while a nasal spray may need regular use before its full benefit is noticeable. Medication controls symptoms; it does not remove the allergic trigger.

Take or use the medicine exactly as directed, and learn the correct nasal-spray technique if one is prescribed. Aim the spray slightly away from the middle wall of the nose. Do not add another antihistamine or decongestant without checking with a pharmacist or clinician. Drowsiness can occur with some antihistamines, so be cautious with driving until you know how you respond. Limiting exposure to pollen, keeping windows closed during high-pollen periods, and rinsing your face after outdoor activity may support treatment.

Arrange a review if symptoms remain troublesome despite correct regular use, interfere with sleep, or keep returning. Seek urgent help for swelling of the lips or tongue, difficulty breathing, faintness, or rapidly worsening symptoms. Get prompt medical advice for severe facial pain, fever with thick nasal discharge, or symptoms affecting only one side with bleeding.

Ask which medicine matches your main symptom, how long to try it, whether another medicine could cause drowsiness, and how to manage symptoms during pollen exposure.