Qingcao Street on Chenggong Road was originally part of the First Market. After the First Market was destroyed by fire and rebuilt into ASEAN Plaza, the original Qingcao Street has retained its original appearance.

There are different herbal shops selling herbal medicine and herbal tea in Lane 90, Chenggong Road, such as Hanqiang Herb Shop and Alan Herb Shop.

The herbal shop not only buys and sells herbs, but also refines herbal tea, winter melon tea, liver-nourishing tea, roselle tea, ganoderma tea, wolfberry tea, etc. Although the owners of the herbal shops are not Chinese medicine practitioners, they know a lot of folk medical remedies. Although they cannot take pulses, they have satisfied many people who come to buy herbs.