View photos of the medicinal plant Aloe maculata [Aloe saponaria] (Soap aloe).

View photos of the medicinal plant Aloe vera, profiled in  Medicinal Plants of the American Southwest.

A passage from  Medicinal Plants of the American Southwest:

Aloe’s leaf pulp, really an altogether different medicine, is also used topically for wound healing. Although its mode of action differs from the leaf exudate, the leaf pulp diminishes inflammation through its inhibitory effects on thromboxane and bradykinin.

View photos of the medicinal plant Aloe ferox (Bitter aloe), profiled in Herbal Medicine: Trends and Traditions and Medicinal Plants of the American Southwest.