Tight testicles, any home remedies to loosen them up?

My testicals are very tight atm, it's been like this for a day and a half now. I'm looking for some advise on how to get them to loosen with a home remedy. I have tried to masterbate but cannot climax because of tightness and tiny bits of pain. I have tried putting them in a nice warm bowl of water it works for 5 ten mins then it tightens again. I've put on big heavy pants to warm them that doesn't seem to work. And not to mention I've tried cumming 4 different times and just tightens more please hit me up would love to hear your suggestions? Thanks you