Is it okay to put makeup over crusted or harden chicken pox? that are about 7 days old?

Yes and no: Hi, In order to prevent and minimize scarring you want to avoid disrupting any scabs or opening up the crusted chicken pox. Putting the make-up on isn't the problem, it's how to get it off. If you can gently rinse off the make-up, no problem, but be sure not to apply any to open pox, and never scrub crusted or hardened ones! Good luck and don't worry, the chicken pox will be over soon :)