There is a self timer of 5 minutes. I did the treatment 2x a day until the pain subsided dramatically. I am happy to say I am now doing it only once a day and still getting good results. Some days I actually forget to do the treatment because I simply have had no pain or very little like a very slight burning feeling. Honestly I am soooooooooooooooooo much better. Read the instructions and it will tell you. Once you start though I would do your best not to miss a day. Good luck.