hi doctor, have a nice day...my boyfriend used to play basketball even when he was a child until now that hes 40yrs of age hes still active in playing basketball, but for the last few weeks he's knee give him so much pain, what i did is i boil ginger ang let him drink everyday and cold compress, its getting better for a while thats why i stop doing it, but now he feel it again the pain in his knee, someone advise me to let him take perilon....is perilon will help? thank you and more power...god bless...