Although I don’t know the purpose of your colon cleansing and the lotion you need to use, I can tell you the simplest method.
Items: Infusion set (bought at the pharmacy), 500ml of normal saline (glass bottles are best)
Steps:
1. Open the infusion set, and Insert the needle into the physiological saline, keep only the tube on the other end, and cut off all the others (such as filters, scalp needles, infusion set nipples, etc.)
2. Lie down;
3. Close the water stop of the infusion set, hang the bottle, squeeze the small pot of the infusion set until the liquid level is at half level, eliminate the gas in the infusion tube, insert the infusion tube into the anus, and boil the water to stop.
4. When the liquid is gone, pull it out.