Hello,
Burning or itching sensation in the whole of the body is indicative of developing neurological problems. Other medical conditions that may cause similar symptoms are infections,
autoimmune disorders. Side effects of certain medicines may also cause
allergy or rashes with itching. Consult your treating doctor for Lovaza and niaspan.
You are suggested to get clinically examined by a
neurologist. Get nerve conduction tests and nerve
biopsy done. Get imaging tests done and get treated at the earliest. In the meantime, you can take vitamin B6, B12 rich food or supplements. Your treating doctor may tell you to get STD tests done if sexually active to rule out STI (herpes,
contact dermatitis, etc). Your treatment will depend on the pathology detected and your clinical condition.
Take care. Hope I have answered your question. Let me know if I can assist you further.
Regards,
Dr. Nupur K., General & Family Physician