Scalp and hair problems possibly from discoid lupus

I just posted on the women's health but this might be a good place for my health problem also. I was diagnosed a few years ago with Discoid Lupus although the Drs are not really sure. I have been using liquid Clobetesol on my scalp for the itching and soreness with inflammation. It is basically one area of my scalp on the top of my scalp and slightly to the left although the remainder of my scalp is also somewhat itchy. Recently a new dermatologist suggested that I try 5mg injections of the same steroid into my scalp in the irritated area. They did not help and so she increased the dose to 10mgs. Immediately I worsened and in the center I had a slight bump and then my hair fell out. It is not a huge area and I can cover it with the rest of my hair but I am remaining very sore, inflamed and itchy. I feel that my hair is becoming thinner all around this area and tonight I cannot sleep because of the itching which seems to be spreading. I am also taking Plaquinel by mouth and they tell me that it doesn't work for 3-4 months. I have been on it for about 3 weeks. Does anyone else have a similar problem and have you had any good results? Has anything helped? I am scared of losing all my hair. Thanks. Jennifer