Hello! Thank you for asking on HCM! Regarding your concern, I would explain that it is not a rare finding when chronic limbs edema complicates with skin irritation and superimposed infection. Besides the advices given by dermatologist, I would recommend to promptlty treat the predisposing substrate; that is edema (it leads to inadequate blood circulation to the surface tissues, predisposing to more readily skin inflammation). I would recommend to adjust CHF therapy; especially loop diuretics. At least an intravenous root of administration would be preferred, to decrease congestion as soon a possible, and an appropriate oral maintenance dose should follow. A comprehensive clinical evaluation; physical examination, coupled wit hcardiac ultrasound conclusions, liver and renal function tests, blood electrolytes, chest X rays would better guide optimisation of CHF therapy. You need to discuss wit hhis cardiologist to review these data and make the best decision. Hope to have been helpful. Greetings! Dr. Iliri