Please help me ill give Explain why healthcare professionals advise people to cough or sneeze into their elbows.

According to a non-scientific test done by Mythbusters back in 2010, sneezing into your elbow can effectively prevent the fluids from spreading, whereas you could still sneeze through a tissue or hanky and end up with gunk all over your hands. So, whatever you do, cover up that sneeze.

Explanation:

i think it's the first one because doctors aren't the ones who get rid of the old needles. most of them time it's not even doctors who give you shots, it's nurses.