Spearmint oil could be helpful with digestive problems like vomiting, flatulence, constipation, colic and dyspepsia. It stimulates a tired mind and helps with headaches, migraines, nervous strain, fatigue and stress. For the respiratory tract Spearmint oil could help with asthma, bronchitis, catarrh and sinusitis. It can relieve the itching of pruritus; and helps with acne, dermatitis, congested skin and sore gums.