Black itchy cuts which happen on the hand could be because of a condition called hand eczema or dermatitis or it could be palmar psoriasis. Both of them present like this. Only a dermatologist will be able to distinguish this. If it is a dermatitis detergents could be a factor. So try to avoid contact with detergents as much as possible like washing clothes and vessels. Wear cooking gloves and then do this. Also some vegetables can aggravate like ginger, garlic, onion, tomato juices, lemon, tamarind etc can aggravate these cuts. Keep moisturising both the palms as frequently as possible. Don’t keep on washing your hands. The minute you wash your hands immediately apply a moisturiser. If it still continues probably you will need oral medication and topical steroid application. At that point you will need to consult your dermatologist.
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