I am so glad to hear about the epipens, and how you taught family and friends. One peice of advice..... the car is not the best place to keep an epipen. Especially if you have very hot and/or cold weather. The epinephrine is very temperature and light unstable. Also the twinject is also a very good autoinjector. However, you and your family/friends may feel a bit more comfortable with the epipen if you are still new at it. As for the feet, keep them elevated when they swell up, not to sure how much it will help, but it may help some!