The Victorian Government has imposed new restrictions on Melbourne, mandating the use of masks.

Following an increase in coronavirus cases over the last few days, people living in metropolitan Melbourne and Mitchell Shire will be required to wear a face covering when leaving home for one of the four allowed reasons.

Residents have now been under restrictions for more than a week, so why aren't Melbourne's coronavirus numbers coming down?

And now that masks are mandatory, what's the best way to make them and safely look after them?

On today's show:

* What do we do if numbers don't start coming down soon?

* Why aren't the numbers coming down?

* Dr Norman gave his recommendation for materials for masks. What are they?

* What should I look for when buying a mask?

* Can I put my cloth mask in the microwave and it will kill the germs?

* My husband was given some surgical masks and was told he could rotate them every three days. Is this true?