 [ Symptoms ] what are the tiny blisters on my four year olds face  two weeks ago my son got a cold sore i can not get it to go away two days ago i noticed he now has little red bumps blisters covering his face now i have put a and d ointment on his face and gave him benadryl and cold sore medicine he is not allergic to anything please help [ Disease ] i recommend you to do cmv tests i gg and ig m to check if you are infected or not but to tell you when to do the tests exactly i need to know when were you in contact with the child with cmv if you got infected then proper treatment is gonna be taken and you probably will have a safe pregnancy