My 11 month old son (who is a twin) has extremely bad breath. Hes had it for months but its gotten progressively worse over these last few days while hes been teething.  His twin doesnt have any bad breath at all. He doesnt seem to have any signs of thrush, but his mouth seems to be more sore than usual.  Hes been extremely fussy and up at least 4 times a night due to the pain. What could this be?
Dear Parent, Bad breath in infants can be due various causes like Chat Doctor.  Also, the sore mouth can still be thrush. Your son needs to be examined by a pediatrician who can give a possible diagnosis and treatment options.