Contact your local congressman with a letter addressing the issue.

seek medical advice as there are a number of issue that occur to the knee which swelling indicates

You should talk about the issue until you understand each other's views.

i will advice her to take anti D injection so that next issue could be out of danger.

Seek qualified medical advice - do not simply purchase medication on the internet without appropriate professional qualified advice as there may be other medical issue that can impact on this part of the body