These are excellent for numbing your stomach before shots. They have a fabric side, which is great to start the numbing process, and then the gel side to numb. You can also heat them up if you want them hot.
Bundle of 2 Plush Hot + Cold Packs
Insanely helpful in organizing all the needles, medications, alcohol wipes, bandaids, etc.
3-Layer Plastic Dividing Storage Box, Craft Organizer and Storage with Adjustable Spacers (Pink) - Walmart.com
I used this to numb my arms for the many blood draws during IVF (obv check with your doctor first).