I did not say it has no benefit. If you are contagious though, you are spreading it regardless through hand contact with surfaces. And unless you are washing it properly after every use, you are more likely to spread the virus.
The only way to prevent getting it, is through self protection. Washing your hands, not touching your face, wearing a N-95 rated mask and totally avoiding infected people are the only protections.
Last edited: Apr 28, 2020