Cymbopogon distans.   芸 香 草 Yún xiāng cǎo 

PART USED: Above ground
 Nature: Warm    FLAVOR: Pungent, bitter
FUNCTIONS
1. Disperse Cold, drain Dampness, relieve cough, calm down asthma, promote flow of energy, expand middle region.[1]
INDICATIONS
1. Common cold, rheumatic pain, chest pain, abdominal swelling.[1]
PREPARATIONS: Dried part above ground  15-60g.[1]
芸香草油 Yún xiāng cǎo yóu    Oil
FUNCTIONS
1. Calm down asthma.[1]
INDICATIONS
1. Chronic bronchitis, bronchial asthma.[1]
PREPARATIONS:  Essential oil.
References
Inner Path can not take any responsibility for any adverse effects from the use of plants. Always seek advice from a professional before using a plant medicinally.
Research

Acyclic monoterpenoid-rich essential oil of Cymbopogon distans mitigates skin inflammation: a chemico-pharmacological study
Divya Bhatt, Swati Singh, Munmun Kumar Singh, Anil Kumar Maurya, Amit Chauhan, Rajendra Chandra Padalia, Ram Swaroop Verma, Dnyaneshwar U Bawankule
Abstract
The topical application of essential oils is considered an effective treatment for skin diseases. Cymbopogon distans (Nees ex Steud.) Wats (Poaceae) is a promising aromatic grass widespread in the Himalayan temperate zone. Therefore, using in-vitro and in-vivo bioassays, we examined the chemical and pharmacological characteristics of essential oil hydro-distilled from C. distans coded as CDA-01, specifically concerning skin inflammation. Characterization using GC-FID and GC-MS provided a chemical fingerprint for CDA-01, enabling the identification of 54 compounds; amongst them, citral (34.3%), geranyl acetate (21.2%), and geraniol (16.4%) were the most abundant. To examine the anti-inflammatory potential, CDA-01 treatment on LPS-stimulated macrophage cells in addition to 12-O-tetradecanoylphorbol-13-acetate (TPA) generated cutaneous inflammatory reaction in the mouse ear was assessed through quantification of the inflammatory markers. Consequently, CDA-01 demonstrated protection against inflammation caused by LPS by lowering the pro-inflammatory cytokines (IL-6 and TNF-α) level in HaCaT cells with negligible cytotoxicity. Consistent with the in-vitro findings, CDA-01 treatment reduced pro-inflammatory mediators (TNF-, IL-6, and NO) and lipid peroxidation in an in-vivo investigation. Subcutaneous inflammation in TPA-treated mice ears was similarly decreased, as evidenced by the histological and morphological studies. As a result of our findings, it is possible that CDA-01 could be an effective treatment for skin inflammation disorders.
Inflammopharmacology . 2023 Aug 5. doi: 10.1007/s10787-023-01302-0. Online ahead of print. PMID: 37541972 pubmed.ncbi.nlm.nih.gov