I do not know of a chinese remedy. I'm shocked about a healing bone but not fusing. I broke my foot 4 weeks ago and I have crutchesand soft boot cast. I go in for my 3 x-rays in a week. I was told it was healing at the 3rd week. I was told it healing also. I hope i don't face the same as your son. My doctor did not give me much dos/don'ts about healing. Now I think I should have been more conservative with my R broken foot. Hopefully, you receive helpful info. re: you son's condition. Bless you. Colleen