Toddlers tend to put their hands in their mouths alot ( and my son ***** his thumb when he is sleepy).I wash his hands often but he still gets these throat infections. Except
for a period when he went about 4 months without any problem, he gets the infections about every three to four weeks or so. On occasion, if his throat is only a little red, he will get over it on his own. But more often that not, his throat is very infected and ulcers develop so that he needs an antibiotic.