Blunt Needle Swing Injection Technique

In traditional practice, needles are inserted directly into tiny blood vessels without regard to resistance, causing "leakage-induced bruising". Extravascular blood degrades and fades over time, forming unsightly ecchymosis that causes more discomfort than the treatment itself. Puncturing other types of soft tissue, such as nerves, tendons, ligaments, and muscles, inevitably results in swelling and pain. The advantage of a blunt needle is that the round blunt end can slide away from the sensitive tissue, rather than piercing it.
"Wiggling into the needle" simply means pushing the blunt needle in from the initial point of entry and advancing it very slowly and gently -- so as to feel directly close to the tissue we wish to slide away from. If pain occurs, simply "twist" back a little and reorient the blunt needle, pushing a millimeter or two in the new direction or plane until no resistance is felt, then continue pushing.