Man sustonan hurts in the injection site like nothing else. My friend injected it in his triceps and he was in severe pain for 2-3 days. So I have been injecting it in my butt, and man this stuff hurts. There is no real pain for about 2 to 3 hours, but then the pain attacks severely and its there for a few days. Is there any way to reduce the pain? Can I mix it with deca to reduce the pain?