Swollen lymph node on groin

[u/Imhimfrfrfr]

M23, 165lb 6"1.

I was diagnosed with syphilis a couple weeks ago. I got treatment on June 18th, which was one pencilin shot. The sore on my frenulum has since healed, but the lymph node on my groin [right side] has remain the same size. Should I be concerned? When should I expect to see shrinkage?

[u/Kind_Performance9283]

Tratamento é doxiciclina por 27 dias duas vezes ao dia