Erythroderma is not uncommon in dermatological practice. We usually encounter raised ESR or CRP, leucocytosis, eosinophilia, anemia, dyslipidemia and hypoalbuminemia in erythrodermic patients. Also electrolyte abnormality is a possibility here. What type of electrolyte abnormalities may occur here. Is it hyponatremia and hypokalemia / hyponatremia and hyperkalemia?