Rainbow is a highly versatile medical tool and can be used to treat both mental and physical disorders: anxiety, depression, PMS, GI distress, migraines and other headaches, muscle spasms, nausea, and pain. Rainbow is an indica-heavy strain. the result of a cross between Blueberry and Dance Hall. The high, often quite strong, creates a happy case of the giggles, a tingly sensation, and a potent dose of euphoria. The aroma is sweet, as is the taste, with hints of flowers and honey. Rainbow gets its name from its multi-colored nugs, which are covered in a glossy layer of trichomes.