OK, a little research on "Clotribet" indicates that it is not marketed in the "first world" under that name, but is in fact a generic for "Lotrisone". In the first world, it is prescription-only preparation because it contains betamethasone, and for the reasons I have quite frequently explain here if you care to
read up on it. I am guessing you may be in either India or South America?
In fact, your condition is almost certainly "Thrush" (Candida; yeast), and that medication is quite appropriate for treating it
and getting your foreskin back to its normal calibre. The fact that the infestation has returned however, is telling you something; whatever caused you to develop the problem at this stage in life (and it would be useful to know just how old you are - approximately) is
still active and you really need to find out what that is.
Hopefully the doctor you will have seen by now will have "twigged" to it and investigate accordingly rather than making some really stupid suggestion such as genital mutilation (called: "circumcision"

). If you are either significantly overweight or over some 30 years of age and almost certainly if you are both of these,
diabetes would be the obvious culprit; even if you were not demonstrably diabetic (which requires a
blood sugar test), a recent contributor
has described a benefit over this problem by cutting out refined sugar from the diet.
Jim has pointed out various other provoking factors for "Thrush". As I have explained in previous threads, you need to bring the Thrush under control with the antifungals such as clotrimazole alone ("LotriminŽ") which is the other component of the "Clotribet" before seriously addressing the stretching back to normal flexibility. The oral fluconazole (DiflucanŽ) might be a good idea as well, but if you have any tendency to diabetes,
that accrues the outright first priority in treatment.
Just wondering how long you were using the "Clotribet"? A 15 gram tube should last at least a month if not two or three; if not you are applying far too much; you only need to apply a small dab to the cracked area of the foreskin, if you are going to apply it more generally, clotrimazole (LotriminŽ) on its own would be the one for those other areas. And you need to continue to apply this - perhaps not at the same time -
as you proceed with the stretching.