Hello.
A year ago I had (unprotected oral, protected vaginal) one night stand with an unknown girl.
I remember I shaved that day so I got concerned about getting an STI.
I took an HIV autotest after 6 weeks, that resulted negative.
A few weeks later I stsrted suffering from hives (itchy skin rash, not painful, all over the body, just like thousands of mosquito bites), which I treated with antistamines. I did some tests for allergy but all came negative. Now the hive is back (milder)
Could this be symptom of another STI?