By Zena Hayward May 29, 2013 0 Comments Aromatherapy TEA TREE OIL Tea tree Tea tree for first aid. The joys of first aid! Managed to put a sewing machine needle through my finger – owwww! It is sore so putting tea tree oil on it to avoid any infection problems. Must be careful to avoid any contact with my eyes.. No problems with the wound at all.