i got accepted in new work and they asked for TPHA ( syphilis screen ) is it possible to get chancre on the pubic area ? is it possible not to have rash after the chancre heals ? it was tender to touch , red and with a white head and went bigger then i was shaving and i accidently ruptured it it heals like in the second or third day but no rash came out after HELP , im freaking out