 [ Symptoms ] will valtrex help with the rash that i broke out with after my son was diagnosed with mononucleosis if not what will  i had mononucleosis when i was 14 i am 46 now my son was diagnosed with mononucleosis and then i broke out in a rash on my hands and fore arms will valtrex help the rash and if not what will it is very itchy and looks terrible [ Disease ] ask him to take nexium   <link> if the problem continues however this should be done only on a doctor is advise