#Antifungal

Citronella grass, known in Thai as ตะไคร้หอม (ta-khrai hom), and scientifically as Cymbopogon nardus, has long held a cherished place in homes and traditions across Thailand and Southeast Asia. As concern for natural wellness rises globally, and scientific research unpacks the real effects of traditional remedies, citronella grass stands out as a fascinating case where ancient wisdom and modern evidence intersect. Thai people, who have embraced citronella both in everyday life and traditional medicine, may wonder: What has modern science discovered about this familiar aromatic plant, and how do its practical applications hold up to scrutiny? This deep dive explores the cultural roots, therapeutic uses, scientific insights, and safe practices surrounding citronella grass for today’s health-conscious readers.

Few herbal medicines echo across as many generations and regions as chùm hèt thét (ชุมเห็ดเทศ), known to scientists as Cassia alata L. or Senna alata. Recognized in Thai as ขุมเห็ดเทศ, and by names such as chùm hèt yài, lúp mạn lûang, chî khàak, màak kà-líng thét, and sôm hèt, this striking “candle bush” is both common roadside greenery and a staple of traditional household pharmacies. Its yellow, candle-like flowers catch the eye, but it is the fresh and dried leaves—harvested in villages throughout the Kingdom—that have solidified its central role in herbal practice. Today, chùm hèt thét’s journey from ancient remedy for skin diseases and constipation to evidence-based pharmaceutical candidate reveals a fascinating intersection of culture, folk wisdom, and modern science—one vital to Thai readers seeking a bridge between old and new approaches to health.