Vinegar is the camper's friend. It is a mild disinfectant, it can be used to clean wounds and scraps, to disinfect dishes, to cure sunburns, and also to heal dry skin. Try it next time you have cracked skin from your hands being in soapy water. or soil (gardening). Most times, the skin's protective mantle has been disrupted by soap and water, or earth; pH correction speeds healing, and the vinegar will not keep air from the skin as a cream will, so it can heal faster than if cream is applied.
To rehydrate the skin, use aloe vera.
Any cream with an oily base will slow healing.