What are the methods for treating tremors and other effects resulting from the practice of masturbation and then stopping it?

You must sincerely repent to Allah Almighty for practicing the forbidden act of masturbation, while praising and thanking Allah Almighty for healing you from it. This involves abandoning all forbidden things and following permissible paths, such as marriage, or fasting for those who cannot marry, as the Prophet, peace and blessings be upon him, said: "O young men, whoever among you can afford to marry, let him do so, for it is more lowering to the gaze and more preserving of the private parts. And whoever cannot afford it, let him fast, for it will be a shield for him." As for how to treat the effects of that habit, it is advisable to consult specialized doctors for diagnosis and treatment.