1) You could go to the health store and buy some “Activated Oxygen“, it’s really inexpensive. The compound is actually just chlorine dioxide if you have a chemistry set, but it can do amazing things.
2) Diaphragm Breathing. Basically you just breath in, hold your breath for twice as long as your inhaled and then exhale slowly. Do this 10 times in a row for a very strong cleansing effect. This works because all of the cells in your body are surrounded by lymph nodes which are basically just oxygen powered garbage disposals. So by holding your breath it gives the oxygen time to circulate through the system and collect it’s garbage.