Synopsis

Source of validity: Traditional
Rating (out of 5): 2

Capsicum (commonly known as chili pepper) has a long history of traditional use in various cultures as a remedy for colds and congestion. The primary component responsible for its decongestant effect is capsaicin, which is known to cause a sensation of heat and stimulate mucus secretion and drainage. In traditional medicine, especially in South Asian and Latin American cultures, hot peppers are often consumed during colds to "clear the sinuses" and reduce nasal congestion.

From a scientific perspective, the evidence is limited but somewhat supportive. Capsaicin acts as an irritant to mucous membranes, which can lead to temporary relief of nasal congestion by promoting vasodilation and increasing mucus flow, effectively helping to clear nasal passages. Over-the-counter capsaicin nasal sprays have been studied for non-allergic rhinitis and some small studies suggest they may provide relief for certain types of congestion, but not specifically for congestion caused by the common cold. There is a lack of robust, large-scale clinical trials directly evaluating capsicum or capsaicin's efficacy as a decongestant for cold-related symptoms.

In summary, while traditional use is widespread and there is a plausible mechanism of action, scientific evidence is modest (hence, a rating of 2/5). Capsicum may provide symptomatic relief for some individuals, but it is not recognized as a primary or proven treatment for colds by mainstream medical guidelines.

More about capsicum
More about Colds (decongestant)

Other ingredients used for Colds (decongestant)

Other health conditions supported by capsicum

Products containing capsicum