from my knowledge i havent seen cases of filarial worms passing through the semen but yes it can cause hydrocele
formation that is swelling in the scrotum
which can enlarge if left untreated. what i would suggest if you can get a specimen of semen containing the something to be investigated for.
any medication has side effects, you should be carefull if you develop,
itching and swelling of face, especially eyes
enlarged lymph nodes
visual disturbances - loss of vision; night blindness; tunnel vision
nausea or vomiting
would suggest visit your physician for further review
hope have been able to answer your query
get well soon.