I get itching and burning sensation all over my body with some lymph node enlargement. Please help.

Hello doctor,

I am a 40-year-old female. The lymph node behind my ear became inflamed and infected before six months. I thought it was caused by an insect bite. I was prescribed antibiotics and the inflammation went down. I can still feel the lymph node there but it is not inflammed. I can also feel the one near my collar bone, near the front of my neck, and groin. I have also had extremely itchy, burning skin all over, and rashes that look like scales that come and go in random places like my neck, groin, lower legs, creases in arms, etc. The itching never fully goes away and gets worse at night. I have also lost 20 pounds in the last six weeks without changing my diet or exercising. I need to lose weight anyway, but it is weird. I am chronically anemic due to heavy periods. Although my Hb is usually low, my platelets are usually within normal range. My latest platelets are rather high.

My current medications are Adderall XR, Trazodone, Atarax, Cetirizine, and Triamcinolone.