Varicocele. Taking them for 20 days now.

I have had dull recurring pain in my right testicle and sometimes the right groin for the past 2 years. I have been diagnosed with grade 1 varicocele on the right testicle,which is quite rare, after a Doppler test. The urologist said surgery isn't required right now and has asked me to wear tight underwear to support the testes and reduce pain. My semen analysis showed ninety one million/ml sperm count and 85% mobility. He has prescribed the following medicines : Hey Forte plus and Tegrital. He said he won't prescribe any pain killers. My questions : 1. Varicocele on the right only is rare. Shouldnt he investigate further if there are some other reasons for the pain on the right. 2. Are these medicines effective for my condition as they haven't helped a lot. Taking them for 20 days now.