 [ Symptoms ] even though canker sores are most common inside the mouth do they occur on the lip  my 6 yr old son just got over a cold he had a moderate temp 102 5 f & vomitted a few times doc said rest fluids & tylenolmotrin for the fever as needed however he has a whitish bump on his lower lip while it looks like a canker sore i am not sure since it is not on the inside of his mouth he does not have any risk factors for a cold sore no exposure to anyone w cold sores no close contact or sharing of anything that could transmit the virus and he is obviously not sexually active [ Disease ] hi for one bv is a bugger for keeping coming back and yes you could be passing it back and forth but as you will read its not the way <link> just copy into google to the www to open and read ok when you have read through that try having a read through these links below you may find some natural help to kick it into touch and away <link> <link> <link> just gopogle them one at a time as above the reason for these links it will keep you off antibiotics after you have been on then do you take acidophilus or probiotics or a good natural yoghurt these all help in getting your natural vaginal ph back to normal do hope you find some real help for you but i think he has something different but there may be some real distant cross over which only some real deep test would find out but of the top of my head could it be shingles he has do hope this helps you and him good luck