the condition you are suffering from is known as ORAL HAIRY TONGUE
, which is caused by overgrowth of FILLIFORM PAPILLAE , that are present on tongue. this overgrowth in turn is caused due to defective desquamation of papillae (that is top most part of papillae don't shed off, something similar to our body hair). this defect in turn is because of inadequate TONGUE SCRAPPING, VITAMIN DEFECIENCIES, CANDIDA FUNGAL INFECTIONS, and lastly, because of excessive use of TOBACCOO, TEA and COFFEE.
the treatment is to have
thorough tongue cleansing with tooth brush or tongue scrapper, follwoed by use of Hydrozen peroxide or chlorhexidine
mouthwashes, and an antifungal drug like FLUCONAZOLE
(which you took), lastly, application of KENACORT
0.2 % gel on the tongue.
BIFILAC has nothing to do in such situation, as it is a PROBIOTIC
drug containing, Strep. Facecalis, chlostridium and some othet microbes, aimed at improving DIGESTION. the first time results may be just a coincidental finding.
Follwo the above mentioned things, and it will become good in few days