Sponsored Topics. Marshfield is a city in Webster County, Missouri, United States. The population was 5,720 at the 2000 census. It is the county seat and part of the Springfield, Missouri Metropolitan Statistical Area. Marshfield was settled in 1830.
Another common cause of sinus headaches is allergic rhinitis (hay fever). Both prescription and nonprescription (over-the-counter, or OTC) oral medications â antihistamines, decongestants and corticosteroids â are used to treat it. 1  Antihistamines.
Claritin causes stomach problems, and Allegra causes headaches. I have been using Zyrtec for years now, and there are days when I take 5 or more 10mg doses to get relief. I had been using OTC sinus sprays for immediate relief, but have quit them, using only saline solution 2 or 3 times daily.