honestly speaking, about 10-20% of my patient has allergy to 跌打, just like allergy to any drugs!
What they can do is avoid 跌打, otherwise your inflammation will get worse!!
I would suggest you to see family doctor or orthopaedic surgeons to
1. treat your allergy, at present
2. treat your foot problem
Best Wishes!
(not in HK, and cannot use chinese, sorry!)