Tough sinus and allergy symptoms come during both the cough-cold and allergy seasons. Be prepared to take these symptoms head on with Advil Allergy & Congestion Relief. The ibuprofen in Advil works with an antihistamine and a decongestant to create a combination that is especially well suited to relieve upper respiratory symptoms associated with allergies. Advil Allergy & Congestion Relief treats your multi-symptom sinus and allergy needs by combining the power of Advil and a proven decongestant to reduce swelling due to nasal inflammation, plus an effective antihistamine to relieve sneezing and runny nose, symptoms associated with allergies.