From Debra NZ, using a solution that matches body salt concentrations causes less disruption to cells and less stinging. Body temperature saline is ideal. It can be bought prepared or made using the following formula: 9 grams of salt (approximately half a tablespoon) in 1 litre of boiled water. Cold solutions can block healing process at least temporarily and may cause hypothermia.

A watering can double as a good ‘hand’ shower for a rinse.