Pain

Hello! A 16-year-old boy writes to you. I train fitness and levers with great pleasure. But the last time I learned a lever trick, my forearm hurt. It was a stretching and tingling pain. It has not been 4 days, so it is not a muscle but a tendon. At least I come to that conclusion. And my question is to smear with pastes like Diklak or homemade strong undiluted brandy to relax. Thanks for the answers.