Want to carry a psoriasis cream with me on plane to China -- reasonable?

Here's the deal.

My wife is Chinese and her brother (college age) lives in China. I have some cream my grandpa gave me for broken out skin (says IC Triamcinolone 0.5% cream on it). It's worked wonders on me and we want to give her brother a few tubes.

Is either giving him some of my prescription or some of my grandpa's (he has tons of extra tubes he doesn't need) even a remotely good idea? Will it get caught in the scanners?

If I have my own prescription (unsure if I'll break out ever again, let alone in time for our trip next year) will that work?

My wife's brother has been to the doctor on more than one occasion and what