Baking Soda for Insect Bite Relief

Research suggests that sodium bicarbonate (baking soda) added to bathwater may offer relief for a specific type of water-triggered itching called aquagenic pruritus, particularly in younger adults with the idiopathic form of the condition, with this finding appearing across several case reports and review articles from the late 1980s and early 1990s. Studies indicate that baking soda appears less useful for water-triggered itching in elderly individuals, whose symptoms are more likely linked to age-related skin dryness and respond better to moisturizers, underscoring that not all itching triggered by water has the same cause or treatment. The available evidence consists entirely of small case series, case reports, and narrative reviews rather than controlled clinical trials, and at least one publication title suggests that sodium bicarbonate baths did not produce the expected results in some patients, pointing to inconsistency in outcomes. Overall, the research base is limited in both size and rigor, and while baking soda has been described as a practical first-line option in certain clinical contexts, the evidence does not yet establish it as a reliably effective treatment for insect bite relief or water-triggered itching more broadly.