Hello, You are suffering from Taste bud problems in tongue. There are many causes for these taste problems in tongue. some common causes are Taste problems can be caused by Allergies, Damage to the taste buds, Nerve problems, Side effects of some medicine, An infection, or other condition causing inflammation. This needs the examination of your tongue and thus proper treatment will be given. For example, it can be due to thrush, this need a proper antifungals. If it is due to allergic reaction, then antihistamines like Cetrizine will help in relieving the allergic symptoms. It may also be due to Drugs which you had taken, this necessitates the stoppage of the offending drug. Likewise the treatment varies, depending upon the diagnosis. Thus please have examined by your GP and get proper treatment. Hope this helps. Please write back for further queries. Wishing you good health.