Greetings, sorry about the palsy. Your expectations are quite fair but reality is different. A complete cure depends on the level of impact you have with bells palsy.
Next Steps
continue physio treatment for next 3 weeks to see visible results. also physiotherapy treatment will include electrical stimulation plus exercise to improve tone of muscle. all these Will work to cure bells palsy.
Health Tips
Be consistent with physiotherapy treatment and be assured it will resolve. rule for bone related issues and nerve related issues to cure is different. if you need further details do let me know.