Scar tissue

I just wanted to vent about scar tissue! I just changed my son's infusion site and it is getting very hard after 6 years to find usable skin that isn't scar tissue. Yes the obvious would be to move to another area of his body, but change is hard. Especially when you've found someplace that's comfortable (relatively speaking) and dependable (at least when it was fresh skin). Now the thought of having to get use to someplace new is inconceivable is his little world. Scar tissue be damned! There has got to be a fresh 6mm patch around here somewhere. Why can't we come up with something that won't hurt, or leave scars! Scientist hurry up! I just hope his little hinny holds out until then.