Hope you are doing good,
Continue with knee-strengthening exercises as well as increase knee-bending range.
If you are comfortable to use a crepe bandage, fine. Otherwise, it's not a must to do. As your physio said u can use both. Knee cap supports the joint. Crepe bandage helps with circulation.
Next Steps
active exercises of the quadriceps helps to recover fast.
Elevation of the knee joint helps to reduce swelling.
Health Tips
Prolonged hanging of the leg and cross-sitting should be avoided.