Can Moxibustion Remove Dampness from the Body?

Moxibustion is highly effective for dispelling dampness, yet its therapeutic scope is limited and it cannot completely eliminate damp pathogenic factors. Dampness arises from relatively complex sources, broadly falling into two categories: external and internal. Externally, dampness originates from environmental influences—among the six external pathogenic factors (wind, cold, summer-heat, dampness, dryness, and fire)—particularly cold-dampness invading the body. Internally, dampness arises from impaired Spleen function, leading to abnormal transformation and transportation of fluids and subsequent internal damp accumulation.

Regarding these two types of externally-contracted dampness, moxibustion demonstrates excellent efficacy specifically against cold-dampness, but is less suitable for treating internally-generated dampness. For endogenous dampness, moxibustion generally yields limited therapeutic effects.

The primary actions of moxibustion are warming, promoting circulation, and tonifying. Its warming effect effectively dispels cold pathogens and simultaneously warms and tonifies the Spleen and Stomach, thereby regulating their functions. When Spleen and Stomach function is robust and their transformation and transportation capacity is strong, dampness is less likely to accumulate or stagnate within the body. With normalized fluid metabolism, dampness and damp-qi gradually resolve and are eliminated. Thus, moxibustion can effectively dispel cold-dampness from the body.

However, for endogenously generated dampness, moxibustion’s ability to invigorate Spleen Qi and warm Yang is only moderately effective. Moreover, it exerts minimal influence on internal damp-heat; therefore, moxibustion is generally contraindicated in cases of damp-heat.