Yes, you can buy your own cryotherapy machine. However, there are a few things you need to keep in mind before making this purchase. First, consult with a physician to see if cryotherapy is right for you. There are certain health conditions that may contraindicate the use of cryotherapy, so it's important to get medical clearance first. Second, when shopping for a machine, be sure to find one that is FDA-approved and has been cleared for home use. Third, be sure to read the instructions carefully and follow them exactly when using the machine. And finally, be sure to have someone else present when using the machine, as it is not safe to use it alone.