✔ 最佳答案
老人家膝蓋骨蝕左, the better term in medicine is OSTEOARTHRITIS.
there are a lot of method you can do.
first of all, how old is the patient ?
as different age group has different treatment offer.
the offers including drug (pain killer), or newer drug that can promote the cartilage growth.
physiotherapy is also helpful
however, i think you have to take him/her to your family doctor first to see is other disease is happening as knee pain can be another problem but not just as simple as Osteoarthritis.
my family doctor in Tai Wai (Dr. Ho) is quite good on this and he can tell you what happen (because i have seen him 1 months ago for the same problem),
he is very nice and may be you can see him if he can help you.
his clinic (Shop 205, Mei Tin Estate Shopping centre, Mei Tin Estate, Tai Wai.)
Tel no 2634 5530
Hope he can help you.