I think i may have missed just a few minutes ago, i am fairly new to this... I did everything i had to do and as i went in a pulled back i got some blood with some air bubbles i was told littleair bubbles were ok... so i pushed everything back in now my arm was very itchy and felt like fire and looked beat red... right now it is still red but not on fire did i completely miss on a three bag shot? just trying to make sure my arms not going to fall off please help.. also i shoot it into my hand.... one other question i have is cann i reuse my cottons? or when i pull from one cotton can i put more water to get more out of it? HELP!! thank you