Dose of Botox after no success 10 days prior

The onset of botulinum toxin A is  between 4 and 7 days in most patients.  If there is no apparent effect by 10  days to two weeks then one would question if sufficient dose was used, or was too great a  dilution utilized.  In either event, retreatment with slightly lower dose than normal might be prudent, or wait at least another 2 weeks before attempting to use standard or higher doses.  It is always best to caution on the side of too little than too much, since you can't take it out once it is injected.