Synopsis

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

Peppermint oil has some scientific backing for its use in alleviating a "tickle in the throat," though the evidence is limited and primarily indirect. Peppermint oil contains menthol, a compound known for its cooling and soothing effects on mucous membranes. Menthol acts as a mild local anesthetic and can help reduce the sensation of irritation. Several studies have shown that menthol can modulate the cough reflex, making it less likely to be triggered by minor irritations—this is relevant for sensations described as a "tickle" in the throat. For instance, a 2013 review in the journal Respiratory Medicine noted that menthol can decrease cough sensitivity in both healthy volunteers and patients with upper respiratory tract infections.

Historically, peppermint oil and menthol have been used in cough drops and throat sprays for decades, and regulatory agencies such as the FDA recognize menthol as an over-the-counter remedy for minor throat irritation. However, direct clinical trials specifically investigating peppermint oil for the symptom of a "tickle in the throat" are lacking. Most evidence comes from broader studies on cough, throat irritation, and airway sensation. While the compound is generally considered safe in small amounts, it should be used with caution, especially in children or those with certain medical conditions. In summary, the use of peppermint oil for a tickle in the throat has some scientific plausibility, but robust clinical evidence is limited.

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