Our 18 mo. old daughter has thankfully never needed the solu-cortef injection . I am hearing differences in opinion as to how it should be injected. Her Endo tells me to pinch the fat at the top of her thigh to inject. Her pediatrician tells me to inject it on the side of her thigh . Can anyone tell me the correct way or are they both acceptable? Also we have a 22 gauge,1 inch needle. Forgive me if this sounds ridiculous ,but does the needle need to be injected completely or partially? How will I know that  I’ve reached  the muscle?Thanks so much for your advice.