This is Dr. David
I doubt she has lymphoma.
I would make sure the blood works chcked for Ebstein barr virus IgG and IgM levels to see if she might have mononucleosis viral infection which can cause fatigue and weight loss and enlarged lymph nodes.
make sure her blood work checked ANA, ESR, C reactive protein to check for inflammatory markers in the body and potential autoimmune conditions
she should consult with an allergist and get skin allergy testing to try to find out what she might be allergic to
have her keep a food diary and see if certain foods worsen her skin rash allergy symptoms.
she can try benadryl at night time and benadryl creams and 1% hydrocortisone creams over the counter to see if this helps her itchiness.
have her try to use soaps and degergents which are allergen free. make sure she mosturizes her skin after washing with soap
her doctors should also check her thyroid hormone levels a well. abnormal thyroid hormone levels can often cause skin problems.
make sure they checked TSH, T3 and T4 levels
if you have copies of her blood work, I would be happy to review them with you
let me know if you have other questions.
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