21 Drops Headache Essential Oil Roll-On Made with 100 percent natural ingredients, 21 Drops Headache Essential Oil ($20) helps relieve and prevent the awful throbs of a headache. To really feel the effects, the brand suggests applying the oil to your temples and the back of your neck — five circular motions in each spot. Image Source: bloomingdales.com 21 Drops Headache Essential Oil $20 from bloomingdales.com Buy Now