Actually, the use of external oxygen/ozone for wound healing is now allowed in many US states as a form of complementary treatment.
Medizone has access to the US' only reliable dermatological machine. It is sturdy (therefore can be shipped anywhere in the world), reliable, consistently performing, and for the quality, reasonably priced.
Medizone, under the umbrella of its half-active patent, could manufacture this machine and it would find a large ready and eager market.