Surgical Spirits acts to tighten- harden and disinfect the outer layer of the skin. It also contains castor oils to help prevent cracking and dryness. Surgical Spirit is a popular product known for it’s skin sterilising properites that can help prevent bed sores – helps to harden the skin. Surgical Spirit can help: sterilise the skin- harden the skin- prevent bed sores- cure bed sores. Surgical Spirit is applied topically.