These rules apply to items in all carry-on bags (carry-on-sized suitcases, backpacks, purses, laptop bags and more) that you plan to take through security. The TSA's 3-1-1 rule outlines the travel ...

What’s critical is rechecking your medical supplies before and after each trip, and throwing out anything that is expired or degraded in any way (imagine your bag sitting on a hot tarmac).