Hi @briantoh this is an interesting question. The best way is to sneeze into a tissue, throw that away, and then wash your hands immediately. Some individuals like to gradually fold and re-use their tissues eventually resulting in a complicated origami piece with mucus leaking out onto their hands. That defeats the purpose of sneezing into the tissue to avoid getting infectious mucus onto your hands. Of course those buggers have a tendency to sneak up on people. If you get caught by surprise and empty-handed (with no tissue), the Centers for Disease Control and prevention (CDC - an esteemed authority on infection control) recommends to sneeze or cough into your upper sleeve instead. Here is a reliable resource with some further details: https://www.cdc.gov/healthywater/hygiene/etiquette/coughing_sneezing.html Hope this helps!