How Can Swollen Legs With Wasting Arms Be Treated?

i have a sister in law who has swollen legs i felt them and they were tight Her arms looks like they are wasting and thin with brown spots and she is itching all the time Im really concerend but she wont go to doctor. I went to see her tonight and begged herto go todoc . SHe works all day standing I dont know how she even gets around SHe is fatigued