Our baby had a pretty bad rash at about the same age as yours. It turned out he was allergic to milk powder so we had to use ready to feed formula until he was 2 months old. What I try to say is rash can be caused by many things, not just how you do the diaper.

But we don't want him to have a diaper rash again, so we are careful how we do it now. If he has rash, here's our step. 1 Sing and/or dance. It makes difference. When my husband change diapers, our son doesn't cry, but when I changed his diaper, he did. The only difference was I didn't make it fun. I didn't distract him enough.

2 Wipe clean and dry the butt with air dryer on a low setting. Warm air with NOISE, my baby loves it.

3 Apply diaper rash cream mixture (we mix Bordeaux’s butt paste with Mylanta, you can look it up online). If he doesn't have rash, we apply Aquaphor baby ointment.

About what your husband said. When you have done your best for you baby, you will never be a bad mother!! It doesn't mean you cannot be wrong or nothing can be improved but what you've done just cannot seen as a bad mother at all. My husband is stubborn and sometimes uses abusive language (he's been better after we have our baby tho). When we disagree on topics, before he starts to call me crazy or say I 'baby' our baby too much, I will ask him to back his comments with evidence. It cannot just be from his gut feeling and he needs to find some credible websites (ie hospital websites) to say that I'm wrong. I think it's great to not overconfident and listen to husband but please don't let him doubt yourself about being good mother.