There are also many prime locations in Changsha, which should be cheaper than the pedestrian street.
O(∩_∩)O~
Actually, you can clean this yourself at home.
Exfoliating things can be bought online or at Watsons. I use Watson's exfoliating gel, which is only a dozen dollars. You can also try the Royal Mud Workshop Mineral Mud Mask, which has a good effect of cleaning and shrinking pores.
I hope I can help you, O(∩_∩)O~