apply 'zheng gu shui' on the affected knee/ankle area for 5 layers before going to bed, interval 5mins to let it dry. check for improvement next morning.
for support can try knee/ankle guard (LPM brand - level 3)

can try this

Guru Active Bone Oil Essence, a type of ointment intended to relieve knee joint pain and restore bones.
The product contains three main patented ingredients, including B-Glu® to lubricate the joints, Natipide®Eco to help absorb nutrients, and OptiMSM® with Arnica Montana Flower to reduce inflammation and pain.