How do I treat the symptoms of sinusitis?
First confirm that you have sinusitis and not allergies or another medical condition.
Consider rest, since your body needs adequate energy to fight off infections. Drinking warm fluids can help, and so can humidity from a warm shower. Consider gargling with salt water, which can help to sooth a throat sore, caused by the post nasal drip that sometimes accompanies sinusitis. Rinsing your nasal passages with a saline (salt) solution can ease the congestion.
Use OTCs like anti-histamines cautiously since the drying effect can be a tradeoff for side effects like drowsiness, dry eyes, and urinary retention. These medications can also worsen narrow angle glaucoma, a serious eye condition.