Hello and thank you for posting your medical question on E health forum.
The symptoms described here is not complete. Additional information is needed to arrive at a complete diagnosis.
Taste disorder can arise to anyone, it may be related to some systemic condition or some time it may be related to our mind and appetite. Oily or greasy taste in mouth can be due to either eating oily and spicy food, gastrointestinal reflux, or improper functioning of the liver. The other causes may include improper oral hygiene, bad dentures, drinking alcohol, smoking tobacco, thick coating on the tongue. Correcting these minor causes can decrease bad taste in the mouth.
You may benefit by undergoing a physical examination with your health care provider as well as a dental examination and a few important blood tests to check for liver diseases and high cholesterol. This can help to diagnose and treat any underlying conditions.
In addition proper oral hygiene, intake of plenty of water, avoiding smoking and alcohol and using a mouthwash after meals would help to solve your problem.
drinking Lime juice twice daily can also help to improve oral taste.
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