Nelsons Arnica Arnica Cream for Bruises (30g). Arnica Bruise Cream. Nelsons arnicare arnica cream is a first aid application, which can be used on all types of bruises resulting from bumps, knocks, injuries or falls. Unscented with a soft texture, arnicare arnica cream can help you to manage minor bruises. Benefits features:. Suitable for all the family. Natural first aid. Unscented. Active ingredient is Arnica Montana. Bathroom cabinet essential