Brief Answer:
Burning mouth syndrome.

Detailed Answer:
Hello dear,welcome to Ask a doctor service.
I reviewed your query and here is advise.
There are many different causes for burning mouth and lack of taste.
*allergy to food or flavours
*some medications
* gastroesophageal reflux
*thrush and mouth infections
*vitamin and minerals deficiency like vit V1, B9, B12, zinc, iron.
*diabetes and hypothyroidism
You should do a total blood count , check blood glucose levels also thyroid function.
Meanwhile try to keep hydrated your mouth by drinking water often, also dont drink flavoured juices , orange juice or tomato juice.
Also keep good hygiene of mouth and rinse often.

Hope I have answered the questioneedle is inserted through the skin between your scrotum and your anus n.
Let me know if I can assist you further.

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