12 lbs = 5.45 kg so dose should be 54.5 mg. There is 20 mg/ml. 54.5/20 = 2.725 ml
If you really can't move your arm because of the sting, and there is pus, the best thing you can do to yourself is go to the Emergency doctor. You can take an ibuprofen if the pain is too hard.
Studies have shown been don't on Exercise and depression, exercise and
and energy levels, exercise and happiness levels , and exercise and eating habits.
Definitely TRUE.
I hope this helps you! :)