my 7 months old baby has severe rashes on her back and front area under only pant area due to diaper probably.

A. If It is in that area only then I am sure it is due to diaper only you can use Boroline anti septic cream regularly into that area every 2 to 3 hours and avoid using diapers as long as you can because when you use diaper constantly for longer durations a child is bound to have a lot of rush is that way