A persistent foul, metallic taste in the mouth is a medical condition known as Dysgeusia. In this condition, your mouth has a constant bitter, acidic taste which lingers throughout the day, even when you are not eating something. The problem is not serious, but it obviously has an effect on the desire to eat and consequently the appetite, leading to a decline in general health. There are several reasons for this condition, including lack of dental hygiene, dental caries leading to infections of the oral cavity, other infections such as gingivitis or periodontitis and tooth abscess. Other medical conditions such as gastritis, heartburn, jaundice and copper, lead or mercury poisoning can also lead to a metallic taste in the mouth.
In order to get rid of this metallic taste in the mouth, it is essential to constantly drink water to wash out the toxins residing in the mouth and improve the general immunity of the body. You should also maintain strict dental hygiene practices, brushing and teeth twice a day to keep them clean and free of cavities. If there is a build-up of plaque on your teeth, you can supplement the benefits of toothpaste by brushing your teeth at least once a day with some salt or baking soda. This breaks away the plaque and helps to fight all dental infections. The baking soda also helps in neutralizing the acid balance in the mouth and leaves a cleaner taste in the mouth. It is equally important to floss your teeth regularly to get rid of any food particles or plaque lodged between the teeth and thus prevent growth of bacteria and dental infections which lead to bad breath and metallic taste in the mouth. Rinsing your mouth with a good mouthwash is important to prevent gingivitis and growth of bacteria in the mouth.
Alternately you can rinse your mouth with a solution of salt and water or hydrogen peroxide and water. This helps to prevent and treat all infections of the oral cavity. It is also important to brush your tongue to keep it clean and get rid of the metallic taste. Regular consumption of citric juices and foods prepared with a vinegar base help to break the metallic taste in the mouth and also stimulate production of saliva which fights bacterial growth and keeps the oral cavity healthy. Apart from this you should ensure that any infection of the oral cavity is treated in time and you get regular dental check-ups to keep your teeth free of infections and healthy.
answered by M W