I have very itchy leg in between knee and ankle. I’ve this problem in both of my legs. The whole area got black and very itchy. This itchiness increases a lot particularly during Summer time when the weather is very hot and humid. The skin colour of that part of my legs is generally much darker than other parts of my body because of this itchiness! I can’t figure it out why I’m having this itchy problem and what should I do regarding this matter. I need your help about this matter.