Himalayan Fir (Abies spectabilis) has a long history of use in traditional medicine systems, particularly in the Himalayan regions. Its resin, leaves, and bark have been used by indigenous communities for the treatment of respiratory ailments, including colds, coughs, and congestion. The traditional use as a decongestant is often attributed to its aromatic resins, which are believed to possess expectorant and soothing properties when inhaled or prepared in decoctions and balms.

Ethnobotanical surveys and documentation of Ayurvedic and folk medicine practices reference Himalayan Fir as an ingredient in herbal preparations aimed at relieving symptoms of upper respiratory tract infections. The essential oils from the fir needles are sometimes used in steam inhalation to help clear nasal congestion.

However, scientific validation for these effects is limited. While there are a few phytochemical studies suggesting the presence of volatile compounds (terpenes, such as α-pinene and limonene) that could hypothetically offer mild decongestant or antimicrobial benefits, clinical studies demonstrating efficacy for treating colds are lacking. Therefore, the justification for its use rests primarily on traditional practice and anecdotal evidence rather than rigorous scientific research.