Yu Ping Feng San + Sheng Mai San modified(LPI) is formulated for individuals with chronic immune depletion, spontaneous sweating, shortness of breath, pale complexion, and fatigue worsened by exertion or exposure to wind and cold. It is especially suited for those who catch colds easily, feel drained after mild activity, experience lingering dry cough with difficult to expectorate sputum, night sweats, palpitations, or a sensation of “emptiness” in the chest. This combination supports both surface and deep immunity—helping to stabilize protective Qi at the exterior while nourishing Heart and Lung Qi and Yin at the interior. Ideal for people recovering from viral illness, navigating Long Covid or post-viral fatigue, or dealing with long-term respiratory weakness and autonomic fragility, this formula gently rebuilds resilience while preventing further loss.