Doctors typically treat the underlying problem associated with a person’s impaired sense of taste to restore normal taste, according to Healthline. Antibiotics are used to treat bacterial sinusitis and throat infections, whereas decongestants and antihistamines are prescribed for cold, flu and allergic rhinitis.
Impaired taste means an individual cannot taste properly or has a changed sense of taste, especially a metallic taste, explains Healthline. The common cold, aging and conditions affecting the central nervous system are some of the causes of impaired taste.
Nervous system disorders and autoimmune diseases, which can lead to impaired taste, are often treated using medications that reduce symptoms, according to Healthline. Zinc supplements may also help restore taste based on studies published in the Journal of Dental Research. Around 50 percent of the participants in the studies experienced better taste after taking 140 milligrams of zinc every day for three months.
To restore taste, physicians also recommend lifestyle changes, such as quitting smoking and maintaining good dental hygiene, as stated by Healthline. Many smokers recover their sense of taste within only a few days after avoiding cigarettes. Brushing and flossing teeth on a regular basis reduces plaque, helps to prevent tooth decay and improves taste.