Baby rash under neck from wet bibs?

Kristen

My 8 month olds rash under his neck gets better and worse for no reason at all. We go through like 24 bibs in a day bc he drools so much. Any idea what is best to put on it? Diaper rash cream drys it out. Aveeno baby lotion seems to help if I apply 5 times a day! Any other suggestions?