I'm a 30 year old male and have a hard cyst like lump on the front part of my neck, basically next to my Adam's apple at the throat, within my beard area. I'm worried this could be a manifestation of primary syphilis given an unprotected oral (both ways) encounter with a female escort CSW in London around 4 weeks ago? Have you ever seen a primary syphilis chancre on the lower neck? Is it possible?
Its very red, about 5mm across, has no puss at all, but is hard and if stretched has an outline thats white. At first I thought it was just an ingrown hair, and I guess it could be as I've a few other smaller red spots around the area (none anywhere near like this one), but following the episode above, I've become worried about it. Its been there about a week and still has no ulcer element to it (presuming thats the white part) I've seen online Syphilis chancres can appear anywhere, but mainly on the area of infection i.e. mouth/genitals - but have seen online they may appear anywhere, and it seems to be called the great imitator.
I've been tested for Chlamydia and Gonorrhea at 2 weeks and was clear on them (including oral swab) having shown no symptoms, I've also been tested negative for Syphilis at 3 weeks, but understand this is relatively pointless and plan on testing again at 6 weeks which I think I'm correct in saying should be conclusive? Ultimately though, could this thing be a Syphilis Chancre?