I can understand your concern. You need to give detail history regarding how many times you are doing  it and any history of porngraphy or work stress. Now days many people are using masturbation as stress relieving coping technique. But you shoud remember the physciological limitations of human body. Don't worry  if you are doing it once or twice per day ,daily but you shoud consult a psychiatrist if you doing it more times. You need to evaluated in detail

consult for more discussion on ur problem and treatment chat privetly,

Hi, the only treatment is to stop masturbating. As you said excessively masturbating I assume your habituated to pornography that is the only reason nowadays why many youngsters are facing lot of issues not only with their health but also their family life and career both have been spoiled.