Baby poo immediately after each feed, now having bad rash. Any recommendations of creams or home remedies for diaper rash?

If it's too bad, maybe see a GP or PD advises, increase u need fungus cream or mild steroid cream to heal it than maintain it with diaper barrier cream. Make sure everytime you clean his s***/pee, you must clean properly especially if u use desitin cream, as most people tend not to clean properly before they reapply.