<human>: I have had an odd red rash on the back of both of my knees for a few days now. I typically don t notice them unless my jeans rub against them. They kind of look like skin would if you scratched it too much, no bleeding or oozing. The other day I was stupid enough to shave my legs with a barber-shop style hair trimmer (my husband uses it to shave his head, he s in the military ). It s been about 4 days since then though, could that have caused it? I also read somewhere that rashes on the back of your knees could be a sign of HIV . I ve had the same sexual partner for almost 2 years now, and he was tested a few months ago and came back negative. Any ideas or feedback would be great. Thanks!
<bot>: Hi.thanks for your therefrom what you describe, it appears that you are starting to have an edematous rash behind your knees. You can apply a mild topical steroid for a few days on the lesions and have oral anti-histaminic tabs if it itches. I do it think you are showing any symptoms of HIV due to occurrence of a simple rash. However, since edematous / similar rashes tend to be persistent and recurrent, you should consultant dermatologist to get the appropriate therapy started. Hope this helps. Take care!