Ejaculate through masturbation or sex
Wait for it to resolve on its own
Stop arousal and rest
Apply a cold compress to the groin briefly
Take a warm shower or bath
Wear supportive underwear
Use over-the-counter pain relief if needed and safe for you
Seek medical care if pain is severe, lasts more than a few hours, or comes with swelling, nausea, fever, or one-sided testicular pain