When can I exfoliate my face after Botox and apply masks?

Following a Botox treatment patients are advised to avoid
exercising for 48 hours and are not to lay down for 4 hours to allow the
product to settle properly.
Patients can follow a gentle cleansing routine, but as an
added precaution,  you should avoid aggressive
treatments such as exfoliation, masks and definitely no laser treatments for at
least 4 weeks following injections.
If you have any doubts as to what treatments are safe and which
to avoid, always check with your aesthetic professional and together you can
create a treatment plan that works for you.

I recommend gentle treatment and cleansing of the skin for 48 hours after Botox.  After that time you can resume exfoliation.