M.H.
Hi L.,
I just wrote to another mother about this. Take a white cotton sock and put good old fashion corn strach. Gently apply on her neck and face. I put it all over my daughter when this had happen to her. It works, its the best. My kids are summer babies and the humidity is horrible. My daughters neck would get so nasty from the sweat. This should help. :) After baths its works even better. :)