Bael (Aegle marmelos) has been traditionally used in Ayurvedic and other South Asian traditional medicine systems for a variety of ailments, including skin infections such as boils. In these traditional systems, different parts of the Bael plant—particularly the leaves and fruit pulp—are believed to possess antimicrobial, anti-inflammatory, and wound-healing properties. Classic Ayurvedic texts mention topical application of Bael leaf paste or decoctions for treating abscesses, boils, and other skin eruptions, though the rationale is predominantly based on empirical evidence and historical usage rather than modern clinical trials.

Scientific validation for Bael's use specifically in the treatment of boils is limited. Some laboratory studies have demonstrated that Bael extracts possess antibacterial activity against pathogens commonly involved in skin infections, such as Staphylococcus aureus. Additionally, the anti-inflammatory and antioxidant properties of Bael, reported in preclinical studies, might theoretically contribute to wound healing and the reduction of inflammation associated with boils. However, there are no robust clinical trials or systematic reviews directly supporting the efficacy of Bael for boils in humans.

In summary, while the use of Bael for boils is well documented in traditional medicine, modern scientific evidence supporting its effectiveness for this specific condition is weak and mostly indirect.