Must the targeted drug penetration site of traditional Chinese medicine have the same limb?

yes. Directional penetration of traditional Chinese medicine Directional penetration of traditional Chinese medicine refers to sticking drugs for treating diseases or relieving pain on corresponding acupoints (according to the doctor's advice) or Ashi points and pain points under the guidance of a directional drug penetration instrument, and directly pushing them from the skin to the focus of tissue injury, so as to relax muscles and tendons, dredge collaterals, promote qi and blood circulation, diminish inflammation and relieve pain.