Is it safe to rub the area that has just been injected with Botox?

I believe that the injected Botox should not be massaged, as it may make the material go to areas that were not intended to be paralyzed.  I think you will find that this is the majority position.

I generally advise people to not rub the treated Botox area for a couple of hours after treatment. The risk is the spread of the Botox to muscles that were not targeted during treatment. Are you sure this was Botox?

I do not recommend rubbing or massaging the areas treated with Botox for the first 24 hours. There is a potential for the Botox to spread to other areas not intended to be treated. For this reason I tell patients no facials within a day of Botox. Best wishes.