7. Covering your mouth with your hand when coughing or sneezing.
When covering our mouths with our hands when coughing or sneezing, we help the germs get on our faces. The results are eruptions, reddening, and other not-so-delightful consequences. It is particularly dangerous with infectious diseases because rubbing your eyes with your hand could provoke an eyelid inflammation.
How to do it right: You should cover your mouth with a tissue, preferably a disposable paper tissue. If you don’t happen to have one, cover your mouth with your elbow crease.