My 6 months old baby boy suffering from diaper rash fungal infection near general area..how treat i use diaper safe,now I can use ketostar cream

A. Can it be ointment you should use it specifically for fungal infection and hundred percent safe to be used in the genital region also but you have to avoid using diapers for the timing and this is going to help in taking care of others also but if you want you can apply Boroline alongside