This is NOT a rash. My daughter did this with her pacifier. She’s teething so she’s drooling ALOT, and when she uses the pacifier and the drool does down on her chin it makes the marks worse. Since it’s happened (about 2-3 weeks ago) I’ve been weaning her off of the pacifier, she only uses it as she’s falling asleep for the night. I bought some aveeno moisturizing lotion to start using on it, but is there anything else that might help?