My little boy is 6 months been dribbling non stop and making bubbles. He is constantly chewing hands and in bother with his gums showing signa of teething. Tonight he has a angry looking rash - his face has been wet all day every time i dry it with a muslin its soaking again. Does this look like a teething rash? Any tips on what I can do? He has nothing else on rest of body only other change is he has refused his dummy for the last week. Thankyou xx