Guideline for the use of surgical mask

As this kind of virus is droplet spread, the surgical mask is an essential protective barrier for this outbreak. As a result, the surgical mask became in short supply. Therefore, everyone should know the corrective way of use to create the utmost efficacy.
However, there are several questions about wearing surgical mask such as:

There are 2 sides of surgical mask and the white color side contains filter. The corrective ways of use are:
- If we have flu, the white side should attach to our face (the color side faces out) to filter the micro-organism not to spread them out to others
- If we are not ill, the white side should face out to protect micro-organism from environment to come to contact with us