Please suggest the best OTC medicine (s) for sinus symptoms management (esp. The headache) and can be used regularly.

OTC meds for Sunuses. Pseduephedrine (Sudafed) is the main decongestant sold OTC, but due to its potential for abuse, it is now stored behind the shelf and u need to ask for it. It can cause increased heart rate and insomnia. u can use nasal sprays to decongest while avoiding the insomnia caused by oral decongestants. Anti allergy meds can be used if they are adding to the congestion otherwise u can skip these .