The old Chinese doctor taught me a method before, that is, slapping the outside of the leg about 30 times a day (of course, the number can be increased appropriately ...)
Remember not to photograph the inside (there are many blood vessels and important acupoints there). Girls' words may lead to irregular menstruation, while boys' words are easy to get prostate disease.
It's really effective. What I'm not satisfied with is that my whole thigh is quite thin now, and this method is absolutely natural and safe, so I don't need to take medicine.