Consult naturopathy doctor. Avoid surgery
It could be due to number of causes such as orchitis, UTI, varicocele, scrotal masses, mumps, epididymitis and many more. See doctor immediately if you have sudden, severe pain or pain accompanied by nausea, fever, chills or blood in your urine.
Support the scrotum with an athletic supporter. Use a folded towel for support and elevation when you’re lying down. This might relieve the mild scrotal pain.