Points: Ear Shenmen (bilaterally).
Technique: After the routine asepsis, fix the helix with the thumb and middle finger of the left hand, and then support Shenmen with the index finger of the left hand while holding the syringe in the right hand. A No.4.5 needle is used to inject 0.1 ml of Vitamin B1 subcutaneously on the points to form white skin prominence. The needle is then withdrawn. Both sides of the points are injected. A total of 124 pregnant women of morning sickness being treated by this method were studied, and 64 cases were cured by one injection, 39 after two and 21 after three. Miscarriage or fetal deformity did not occur in any case.