天美麻豆

I just took a trip to Vietnam: what a beautiful country!!!...I am retired. Having recently brought back "Ca眉 Tich" from Vietnam (roots or branches of tree fern cut into thin slices and dried), could someone from your group tell me about its use to treat osteoarthritis? Precisely, what is the use (dosage: herbal teas, decoctions, quantities, etc.). THANK YOU very much for your response, if at least one specialist knows this product. Bertranou