Perilla, the grass of pure yang, is the choice of ancient wisdom to dispel dampness and relieve heat Perilla, the grass of pure yang, is the choice of ancient wisdom to dispel dampness and relieve heat Perilla, the grass of pure yang, is the choice of ancient wisdom to dispel dampness and relieve heat Perilla, the grass of pure yang, is the choice of ancient wisdom to dispel dampness and relieve heat Perilla, the grass of pure yang, is the choice of ancient wisdom to dispel dampness and relieve heat Perilla, the grass of pure yang, is the choice of ancient wisdom to dispel dampness and relieve heat