★★★★☆
But when the inflammation is very intense when in rest, there is no better cure I've found than externally applying stinging nettles to the affected area. My Mum is a herbalist, and told me some years ago about the traditional usage of nettles as a lashing for especially joint problems/muscle injuries. I guess the theory is that the sting from the nettles causes an increase in blood flow to the affected area.
I'd recommend really going to town on the stinging especially if the pain is quite deep, and in my experience it is always rather soothing to experience being stung where the muscles/joint are hurting so much. But importantly, wrap up very warm, or apply a hot water bottle, after stinging!
For some reason this treatment can shock the body into fever if you don't take adequate measures afterwards. Also, expect a bit of itchiness especially the day after! And I would recommend just administering one treatment every day at the most, because of the intensity of the treatment, and to keep using other treatments alongside.