Hello everyone! Girls, how did you deal with diaper rash? The baby has…

Hello everyone! Girls, how did you deal with diaper rash? The baby has red spots on his neck, armpits and legs. I'm already desperate, I try everything - powder, cow's milk cream, Bepanthen, baby cream, bathe him in alternating hot water and seawater, but nothing helps??? I want to try with chamomile baths and olive oil now, they say it helps well. We already have an unpleasant smell around the ears. What can be done?