first of all,you should not be using tapers to stretch your ears.use bondage tape.tapers are horrible for your ears.
but,if you have to,use hydrogen peroxide.
Palladium.
with a good old fasion bath
The best way is to filter sterilize the solution using a nylon membrane/ syringe filter, of 0.45 micron pore size. If needed, dissolve Urea in autoclaved water and then filter sterilize.
Any good body piercing studio will gladly set you up with a stretching program to get you up to the gauge you want to be at. Besides that it's best to do supervised stretching to avoid damaging the lobes and in turn tearing the tissue. Stay away from Internet stores claiming to have great deals, this stuff is junk out of Asia and will cause issues with your lobes. Save time and money talk to a professional body piercer in Toronto.
you should make sure you are doing the appropriate stretches for your activity is best. Stretching at the gym directly before actitivity is best.
You could but you need to make sure it is the clear acrylic because you can and may get an infection its best to use steel tapers 1. it wont take as long to heal and 2. its easier and cleaner (and wont smell as bad)
Piano
Lynx is the smelliest but I recommend as the best!
Kendrick is the best alive.
One of the best websites for improving flexibility and mobility through stretching is "ROMWOD" (Range of Motion Workout of the Day).ROMWOD offers a variety of stretching routines designed to increase flexibility and mobility in a safe and effective way.
Dynamic stretching prior to exercise helps prepare the body for exercise and prevent injuries. After exercise sessions static stretching should be performed, holding each stretch for a minimum of 30 seconds or more to re-estabilsh the length of of the muscle
Jogging Walking Stretching Swimming Biking