If you rub epsom salt into your hair, this is the effect

salt and water is one of those low-effort remedies people reach for when a bite feels itchy and puffy. As it dries, it can feel cooling and may help take the edge off irritation for a short while.

Mix 1 teaspoon of Epsom salt with just enough water, usually 1/4 teaspoon or so, to form a paste. Dab it onto the bite for 10 to 15 minutes, then rinse off gently. This is best for ordinary minor bites; if you see spreading redness, major swelling, or any breathing symptoms,