Thanks for your query.You had a injury to your testicles two days back and having pain and swelling in Rt Testicle.This could be a swollen epididymis
due to injury or could be a haematoma
.Please get ultrasound
of the scrotum done to confirm the diagnosis.Please take some antibiotics like Doxycuclin and anti inflammatory drugs like Diclofenac
twice daily after consulting your family Physician.You should-be alright in a week.