Hi Neha,
Candid cream has worked for my kids too in the past. also, i would suggest that use Dettol as a regular bath liquid and add a few drops to the bath water, but not specifically only for the private area.
also, make sure you clean her each time she uses the washroom, even for toilet. this will ensure that the area is always clean and reduce any chances of infection. also try to change her underwear and get her a fresh set.
Read more