L.W.
Hi R.,
Sorry this post is late. I'm an IBCLC and see many babies with thrush. If you are breastfeeding and Landon's thrush is causing pain, there are a number of therapies available.
The most commonly prescribed medication is nystatin, which is applied to the baby's mouth (and to mom's nipples if she's nursing). Another tip comes from Jack Newman, M.D. - using a dilute solution of gentian violet swabbed on baby's mouth usually gets rid of thrush in three to four days. The biggest problem is that Landon may have a "Smurf mouth" for a while, because gentian violet stains the skin. For more information, see http://www.breastfeedingonline.com/yeast.shtml.
The advice you've already received about washing his hands frequently, boiling pacifiers, bottles, plastic toys, using paper towels, etc. is excellent. Thrush thrives on warm, moist surfaces, and can be stubborn!!!
Hang in there - it will disappear with time and treatment.