 [ Symptoms ] can ceftin cause cold sores i have got several cold sores since being on this antibiotic and im not sure if this could be the cause [ Disease ] hi having testosterone injection or the use of a gel could shut down your own testosterone making equipment for good leaving you to need help for the rest of your life its a little side effect doctors do not tell your about so for now try this site or two they could help you <link> <link> natural testosterone boosters <link> natural nitric acid boosters <link> something to try to raise your testosterone hcg just copy links one at a time into google to the www to open and read do hope you find the help you need good luck