Seeing a Doctor. If the underlying cause of a metallic taste in the mouth is treated and cured, then the taste will usually go away on its own, especially when the cause is a simple temporary one. However, in some cases, the taste will persist. If so, it is important to see a doctor for the issue. A primary care physician can refer the patient to an otolaryngologist- an ear, nose, and throat doctor. This doctor will then administer a taste test to the patient to help figure out the cause and extent of the problem. A taste test will show how a person responds to different types of chemicals.
