Hello
No, the mites cannot move to non affected areas, they move very slow and will be killed soon by the treatment,
the ZZ is very effective, for example, what happens many times is that people get pimples on areas with no symptoms before,
this because, even when not treated, a tiny bit of the ointment will get everywhere on the face by means of your hands, pillow etc. while sleeping
and kills the mites there, this looks like the mites where escaping to this new places but that is not true,
the mites where there already before but just no symptoms on this places.
Your itching now is a bit a mystery for me, but you should not treat your lips, this skin is to sensitive and there cannot live mites anyway
because no hair follicles there, maybe you use too much ointment?, just a tiny bit is enough.
Maybe it is a kind of allergic reaction?
or maybe just temporarily?
Try not to use too much anyway,
and don’t use to deep in the nostrils neither.
The mites cannot hide, the only place they can be which is not treated like this are the eyelashes.
If you continuo to treat you will get rid of all your problems, you will see………………..
it can take time but the effort is more than worth it.
Walter