Hi thanks for your question.
What I could understand from your question is you had some uterine infection
for which you took antibiotic and now it is better.You want to concieve and your Doctor has advised you to take canesteen 3 hours before intercourse..Canesteen is Fluconazole
which is an antifungal medicine used to fungal infection
and yeast infection of vagina.It can help in concieving only if you have vaginal infection
and your Doctor think this vaginal infection is responsible for infertality,otherwise it has no role in fertality.
Medicine for fertality depend upon the cause and there are hundreds of causes of infertality and there is no single medicine which can be prescibed for concieving.
Both you and your husband need to be investigated for causes of infertality and only then medicicine can prescribed depending upon the cause of infertality.
I wouuld suggest you to consult a gynaecologist who will be able to investigate both of you and may prescribe medicine accordingly,if needed.
Hope this answers your question.