Can teething cause a 12 month old to get really mucusy?! We took my son to the dr like two weeks ago because he had a really runny nose and would wake up coughing and choking on mucus. Well the dr gave him a one time dose of medicine for croup which I thought was working but now he's back to choking and coughing up mucus. We are doing Vic's and a steamer and the nose sucker thing so idk what more I can do. Can't really give a 1 yr old any medicine for this....