Could you please help me know where can I post chiffon blouses and shirts in Foshan during Dec..

If you wanna such clothes by now, I'm afraid you cannot find any, except at the clothes wholesale market I guess. If they have some, they are the leftovers from the summer. You may consider whether to buy or not.

If you want good clothes with cheap price, I suggest you go to local Gaoji Street for a try!