ciuld hibes be a sympton of an std

sighs ok im a lesbian female how had an encounter about a month with another female and  days after the encounter she started gettin hives and she's claiming weeks latend  i r there gotten worse she's been 2 three different types  doctors and the first 2 couldn't tell her anything but the 3rd doctor ran some test and told her it could possibilty be a std like im freakin out cuz i was testing weeks b4 and everything was ok and she said she was recently tested also and now she think that hives are a std and i gave thm 2 her but i never witness hives on myself so what should i do>>>>>

[gracefromHHP]

hives are not a symptom of std's.  

grace