Do not wash the treated area for at least 1 hour after applying Retin-A. Avoid the use of other skin products on the treated area for at least 1 hour following application of Retin-A. Keep the medication away from the corners of the nose, mouth, eyes and open wounds.
Definition of water closet. 1  1 : a compartment or room with a toilet. 2  2 : a toilet bowl and its accessories.
W.C. is an old term referring to water closet. This term was used in the United States back when my maternal grandmother was a child in Oklahoma in the Red River Valley, which was during the 1930s. W.C. is not a common term now, in the United States, so Iâm surprised to hear that it is used in China.