Is A Rash A Sympton Of Hypothyroidism Do I Have Psoriasis Or Eczema?

Do I have Psoriasis or Eczema? - is a rash a sympton of hypothyroidism

Thus, during the summer, I developed a rash on my right Knuckles. His red blisters formed on her. When I try to remove the dead skin, also seems that there pus. From the research I've done seems to eczema, but one thing bothers me. The rash when treated with hydrocrotizone No cracks like a deep wound. I know this is a symptom of psoriasis.

Another reason why I think it's eczema is that among the rash on my hand that I dry patches on the skin, a bit less pigmented.