Epsom salt can sting any areas of broken skin, so we recommend not floating during a flare-up of eczema or psoriasis. However, many people with recurrent eczema and psoriasis find that floating helps these conditions. Epsom salt is magnesium sulphate - and magnesium is naturally antimicrobial and antibacterial, which helps keep minor skin irritations clean. Floating also helps to reduce cortisol levels (the stress hormone), and research has shown that flare-ups of eczema and psoriasis are often correlated with stress levels. Therefore, regular floating could help prevent further flare-ups. If you do want to float and have a flare up, you can always use vaseline on the area to stop it from stinging so much