Started taking doxy for perioral dermatitis but 6 months earlier ...

Started taking doxy for perioral dermatitis but 6 months earlier had to take it for Rocky mountain spotted fever. Since i first started taking I have had sever rashes joint pain, fatigue, weakness all his time I have blamed rocky mtn spotted fever side effects. Now I have been prescribed the doxy for my face and I got a burning rash that resulted in severe blisters I continue to itch all over arms hands and face. I finally stopped taking the meds 2 days ago. I have major vision changes it is hard for me to read anything my tongue is swollen my skin has little blisters all over my forarms and hands sometimes I have tremors and feel as though I am going to pass out. Does anyone know how long the itching continues? and if any doctor is reading this is this steven johnson syndrome?