Can I use tazorac retinol gel on the skin site after a botox injection?

You can resume all your regular facial skin creams following your Botox treatment.  You want to refrain from massaging the area and avoid facials for 4 hours after the injection.  After that time period it is beneficial to resume your skin care.  

Yes, it is safe to resume your Tazarac gel to your face after Botox treatment. You may experience some transient stinging at the injection sites that day from minor irritation, but you should be absolutely fine the next day.