When to see a doctor If you have pain or swelling in your scrotum, especially if the pain occurs suddenly, see your doctor right away.
[mayoclinic.org]
However, sometimes children suffering from mumps in the first 7 days after the swelling occurs around the scrotum, testicles also swelling, pain or a sense of falling, and
[tcmwell.com]
[…] to relieve symptoms (pain and swelling), and thus to prevent and reduce the incidence of complications.
[tcmwell.com]