Question: what is the strongest over the counter sinus medicine?
Answer: Nasal steroids. amazon.com. These are nasal sprays like Flonase, Veramyst, Rhinocort, and Nasonex. ... 
Decongestants. walmart.com. Decongestants are medications that reduce swelling and inflammation by narrowing your blood vessels. ... 
Pain relievers. amazon.com. ... 
Mucolytics. walmart.com. ... 
Antihistamines. amazon.com.