I gave a handjob. i had a cut on top of my finger. the cut wasnt deep and it was done about an hour ago. cut came into contact with fluids with syphilis. four days ago i was treated with 2.4units of bicillin for syphilis. am i reinfected?

Have a test for syphilis done in a few weeks to make sure the treatment was effective.

Syphilis is not transmitted by hand-genital contact, regardless of cuts on the fingers etc. In addition, it is impossible to acquire syphilis if exposed within 2-3 weeks of receiving benzathine penicillin (Bicillin): it provide penicillin levels in the blood sufficient to prevent syphilis for at least that long. You are at zero risk and do not need testing.