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.
This medication should not be used in people with sulfa allergy. ImitrexÂ®: Sumatriptan (ImitrexÂ®), used for the treatment of migraine headaches, is related structurally to sulfonamides, although there is no evidence that people with sulfa allergy are at increased risk for reactions from this medication.