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Order them on Amazon, next day delivery
板蘭根 on Amazon
https://www.amazon.com/Banlangen-Fufang-Keli-Individual-Sachets/dp/B00B0GM9WK/ref=sr_1_3?dchild=1&keywords=%E6%9D%BF%E5%85%B0%E6%A0%B9&qid=1627609562&sr=8-3