I have ask questions on this before, I am new to this and trying to know as much as I can. I injected last week, my left side was done last Monday and is doing fine ( a little sore but getting better every day ) but right side witch was done last Thursday is swollen and red, the red spot is about 4'' by 5'' and hurts a lot. It doesn't itch and other than it being painfull it's seems ok. Do I need to go to the DR because it may be infected? Also I used hudge 20g 1.5 N and I am now going to use 25g for the rest. Please give advice if possible.