Hi Avantika, I used to put my newborns in infant diapers when they had to go for their doc visits. these are very gentle and do not cause any rash. otherwise i only used a regular cloth nappy at home and no diaper. my kids were potty trained by 2 years and the second one was trained by 15 months, so stopped using diapers after that.
I used Pampers Newbaby Diapers from the moment my kids were born and never had any problem. No rashes at all :)
I used mamy poko and Drypers since baby was a newborn. In between I'm using cloth Diapers. Love it.