The treatments for allergies are often either removing the allergen if possible, prescribing anti-histamines, or recommending allergy shots, depending on the origin of the allergen. There isn’t a “cure” for allergies; there are only a couple of different methods to help alleviate the experienced symptoms. Most sinus infections will go away on their own with time, but many doctors will recommend saline sprays or decongestants to help alleviate the associated symptoms. Depending on the case, your doctor may prescribe antibiotics to help you get rid of the infection, but they will only work for some circumstances, otherwise, they may do more harm than good.