Fluocinolone acetonide is a synthetic corticosteroid that exerts anti-inflammatory, antipruritic, and vasoconstrictive effects by binding to glucocorticoid receptors within cells. This binding modulates gene expression to inhibit the release of inflammatory mediators such as prostaglandins and leukotrienes, suppresses leukocyte infiltration at the site of inflammation, and reduces capillary permeability. In the skin and mucous membranes, these effects decrease swelling, redness, and itching. When administered intraocularly, it reduces ocular inflammation by similar anti-inflammatory pathways.