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.
Avoiding substances that trigger your allergies can help, but since that is not always possible, you may reach for a medication. Several types of allergy treatments are availableâallergy shots, antihistamines (pills, eye drops, and nasal sprays), cromolyn, leukotriene blockers, and nasal steroid sprays. This report focuses on second-generation antihistamine pills and nasal sprays, such as Allegra, Clarinex, Claritin, Xyzal, and Zyrtec.