There are three possible levels of treatment: symptomatic, corrective and preventive.
Symptomatic treatment only relieves the symptom (in this case, anxiety) temporarily. We do have points which can relieve anxiety temporarily; they are on the forehead, neck, ear and wrist. However acupuncturists prefer to go beyond symptomatic treatment to corrective and preventive treatment.
Corrective treatment aims at restoring strength and peace of body and mind so that the person is less susceptible to the symptom. An acupuncturist will evaluate each individual to determine the underlying cause of the anxiety, which may differ from person to person. Once a diagnosis is made, the appropriate points are selected to achieve mental and physical balance to not only relieve the anxiety symptom, but to strengthen and calm body and mind so that anxiety is less and less likely to occur over time. This will require a series of treatments in most cases. This type of treatment will utilize the points mentioned above, but also include points indicated to bring the patient into a condition of greater wellbeing. Typically these additional points will in my practice be around the wrists, knees, legs and feet.
Preventive treatment is engaged after the corrective phase. The purpose of preventive treatment is to keep the body and mind in balance so that it does not revert to the condition that made anxiety arise as an ongoing issue. This will involve regular wellness treatments (1-2 x monthly) including points utilized for symptomatic and corrective purposes.