1. Yes, you can get genital herpes from receiving oral sex and if you did, it would vey very likely be HSV 1, not HSV 2.
2. It is so hard to say from your description. It seems like at first, you had no tiny lesions at all, that came a little later? If people are going to develop symptoms with new infection (and not everyone does), it is generally between 2 and 10 days from the exposure to the virus. It would have been optimal if a PCR was taken from the place where you have the abrasion feeling, even if the bump did not look like herpes because herpes can look like a variety of things.
3. If you had come to our clinic, we would have gathered a baseline IGG antibody test for HSV 1 and 2 at your very first presentation. That way, since it was just a little while later, we might have been able to help you sort out whether you had HSV 1 going into this experience before much chance to develop antibody had passed. However, it sounds like you really didn’t get seen until about 2 weeks or a little more after the encounter so the antibody test (IgG) would have been difficult to interpret if it had been a low positive. A high positive would have suggested that you had been infected with HSV 1 for a long time. Have you ever in your life had a cold sore on your lip or in your nose? If we had a patient who had received oral sex from someone with an active cold sore, and our patient had never had a cold sore, we would recommend testing by IgG, just because there would certainly be a chance for transmission to occur.
4. You could get an IgG done now – I think we are still about 2.5 weeks out. The I would repeat it at 12-16 weeks if it is negative the first time. Two days of Valtrex would not impact the test results. And 10 days wouldn’t really help you at this point, I don’t think. But if you stop taking it and get more blisters or lesions you may wish to restart. I think most health care providers are simply not aware that taking Valtrex for an extended period of time can impact antibody development. Truth be, 10 days wouldn’t impact it either, so finish if you wish. It sounds like your doctor didn’t give it to you because he thought it was herpes, it gave it to you to ease your mind, does that sound right?
Terri