Aerva lanata is primarily used in traditional medicine systems, including Ayurveda and folk remedies across India and parts of Africa. Its use to support or treat colic in children is documented in ethnobotanical surveys and traditional healing practices. In these contexts, the plant is often prepared as an infusion or decoction and administered to soothe gastrointestinal discomfort, including symptoms resembling colic. The rationale for its use is largely anecdotal and based on the empirical knowledge of traditional healers rather than on systematic research.

However, scientific studies validating the efficacy or safety of Aerva lanata specifically for colic in children are lacking. While some pharmacological studies have identified antispasmodic, anti-inflammatory, and antimicrobial properties in extracts of the plant, these findings are not directly linked to pediatric colic and have not been evaluated in clinical trials involving children with this condition. Furthermore, there is little published data regarding appropriate dosing, safety, or potential adverse effects in pediatric populations.

In summary, Aerva lanata's use for colic in children is supported by traditional knowledge and practice, but lacks robust scientific validation. Caution is advised, especially when considering its use in children, due to the absence of clinical studies and established safety profiles.