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

salt solution with tweezers nearby
Small bowl of warm epsom salt solution with tweezers nearby
8. Sunburn compress

For mild sunburn, a cool compress made with a weak Epsom salt solution may feel soothing. Here, the real relief comes mostly from the cool temperature and moisture, while the diluted salt water can be refreshing as long as the skin isn’t broken or severely irritated.

Mix 2 tablespoons of Epsom salt into 1 cup of cool water, dip in a soft cloth, wring it out, and lay it over the area