TASTE IT? lol, DONT put that shit in ur mouth.
it probably has too much BA benzyl alcohol in it thats keeping it too sterile and the alcohol is causing the soreness.
When you injected, did you do it quick "ah yea im no wuss im a stab this muffuxa and be done with it" and then 5mins later, the damn glute explodes in pain?. BAD IDEA. u hit a nerve or something in there and caused ur body to go into panic mode or hell it could be an infection.
KEY TO NOT GET REDNESS, SWELLING, PAIN, OR ANYTHING IS TO BE A PUSSY AND SMART AND DO IT SLOW, AT A SNAILS PACE IN ORDER TO NOT HIT NERVES OR ANYTHING AND TO NOT TRAUMATIZE UR BODY WITH A STABBING PIN RUPTURES ITS BODILY PRECIOUS TISSUE.
patience is a virtue, thats what you lack my friend. sometimes its okay to be a pussy, being a pussy keeps you on the safe side and also on the smart side.