How do I use dental dams?

I've seen the recommendations. I've seen the suggestions for do-it-yourself workaround (cutting open a condom, plastic wrap... ). What I *haven't* seen is practical usage advice — how to place the thing effectively, how to overcome the limitations of losing direct contact, how to arrange things to permit vaginal penetration with fingers while still maintaining protection and so on. Best-practice condom use isn't perfectly obvious either, but at the most basic level it's pretty straightforward. If you want to build acceptance for barrier use during cunnilingus, it needs to be at least as clear and/or at least as well-documented.


Why did I get a false positive HIV test?

Dear Alice,

I recently had a routine HIV screening done for prenatal labs. It was positive. Thank GOD, western blot came out to be negative. My OB is reassuring me not to worry, that false positives sometimes come out in pregnancy, and as long as the western blot is negative — I'm negative. Could you explain a little more in detail as to why and if you agree with my doctor? I'm at very little risk otherwise and had a negative HIV test about five years ago and am with the same person (my husband).


How can I ask my partner if they have any STIs?

I really enjoy reading your answers on these pages, but here's the question that I haven't seen addressed on your web pages or anywhere else on the Internet. Can you please suggest some appropriate ways to ask a person with whom you're about to have sex if he or she has any sexually transmitted diseases? A few months ago, I met a girl with whom I had sex... and, as I found out later, she had herpes. We did use condoms anyway, but there was still some risk in catching herpes since we didn't use condoms all the time.