There is often a digestive component, or was at the beginning of the story.
In this case, the pain may increase after eating difficult to digest foods like dairy, wheat, and fatty or fried foods.
In the ayurvedic view, improving the agni, burning ama, and cooling the blood reduce inflammation. See my summer recipes in #everydayayurvedacookbook
Systemic situations can be complicated, and while I share these general principles to shine some light on sources of joint pain, its a good idea to seek out a professional about anything chronic.