Zhang & Cheung Clinic

I am not impressed with dr. Zhang holistic approach The 1/2 kg of Chinesse 17 herb mix would be hardly covered with 10 cups of boiling water, instead of 6 as dr.has recommended . After 40 min.of boiling the herbs I drained the liquid. I drank 1/4 of cup in stead of 2/day recommended , and got headache.No any other instructions or possible side effect symptoms, was mentioned!! Moreover, the time for appointment was limited to $90/30 min. and extra charge is applied for more time spend !