What should I do if Fluomizin does not dissolve?

Good morning. I take the drug fluomizin, I wonder what to do when the tablet does not dissolve. Do I have to hown myself or wait for it to fall out? And if it falls out the next day or e.g.: only during the period. I take a tablet with a large amount of Veseline( otherwise I put shallowly, and still from the veselinS I manage only about half a finger) moisten my fingers when inserting the tablet as the gynecologist told me, but I am afraid that the tablet did not dissolve anyway.