It would be best to continue following up with your injector or see a board certified dermatologist or plastic surgeon. Protocol is unique to the injector. Hope this helps.
Generally speaking, Botox has fully bonded about 2 days after your treatment, so I would recommend waiting at least 48 hours after your procedure.
Thank you for your question. Your description of more visible veins is likely a result of normal aging. Botox cosmetic interacts with muscle contracture designed to decrease wrinkling. Best of luck.