Evidence supporting the use of: Acetic acid
For the health condition: Fungal Infections

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Synopsis

Source of validity: Scientific
Rating (out of 5): 3

Acetic acid, commonly found in vinegar, has a long history of use as a topical agent for treating superficial fungal infections, particularly in the context of athlete's foot (tinea pedis) and otomycosis (fungal ear infections). The scientific rationale for its use is primarily based on its ability to lower the pH of the skin or affected area, creating an environment that inhibits fungal growth. Several small clinical studies and case reports have demonstrated that topical application of dilute acetic acid (typically 2-5%) can be effective in managing mild superficial fungal infections, especially when other antifungals are ineffective or contraindicated. For example, studies have shown that acetic acid soaks can reduce symptoms of athlete’s foot and can be beneficial in managing chronic otomycosis, where acetic acid ear drops are sometimes recommended as part of a treatment regimen.

However, the evidence base is limited; most studies are small, non-randomized, or lack rigorous controls. There is also variability in the concentration used and the duration of treatment. Despite these limitations, official guidelines from some dermatological societies do mention acetic acid as an adjunct or alternative, particularly in resource-limited settings. In summary, the use of acetic acid for fungal infections is supported by modest scientific evidence and is recognized in clinical practice, but it is not considered a first-line treatment where modern antifungal agents are available.

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Products containing Acetic acid

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