How Long Should You Sit in a Baking Soda Bath?

Sodium bicarbonate (baking soda) is a common household product used in personal hygiene for its soothing properties. When dissolved in water, this alkaline compound helps neutralize acids on the skin’s surface, offering temporary relief from various irritations. This article details how to prepare and safely use a baking soda bath, focusing on the appropriate soaking duration.

Preparing the Baking Soda Bath

Begin by filling the tub with comfortably warm water, avoiding excessively hot temperatures. Hot water can strip the skin of natural oils, leading to increased dryness, or cause lightheadedness during the soak. Lukewarm water is recommended, as it supports the skin’s ability to absorb moisture without causing undue stress.

For a standard-sized bathtub, add between one-half cup and two cups of sodium bicarbonate; one cup is a common measure for a full soak. For localized issues, such as vulvar irritation, four to five tablespoons in lukewarm water may suffice. Ensure the powder is fully dissolved by gently swishing the water before entering the tub to guarantee an even distribution. Avoid excessive amounts of baking soda, as this can contribute to skin dryness rather than alleviating irritation.

Recommended Soaking Times

The recommended soaking time for adults is generally between 10 and 40 minutes. A soak lasting 15 to 30 minutes is often sufficient to achieve soothing effects without overexposing the skin. Staying within this range allows the sodium bicarbonate to effectively relieve itching and irritation.

A shorter duration of 10 to 20 minutes is advisable for individuals taking a baking soda bath for the first time, or when treating young children. Limiting the exposure time is a preventative measure against potential skin barrier disruption, which can occur with prolonged water immersion. Exceeding 40 minutes is not recommended, as extended exposure increases the risk of the skin becoming dry or irritated, counteracting the intended therapeutic effect. After the designated time, exit the bath immediately and proceed to post-soak care.

Common Reasons for Use and Safety Guidelines

People use baking soda baths for temporary relief from various skin discomforts, leveraging its ability to soothe irritation and itching. Conditions such as mild sunburn, insect bites, or rashes benefit from the soak’s calming properties. It is also used to help manage symptoms associated with eczema, psoriasis, and yeast infections, as the alkaline nature may create an unfavorable environment for certain microbes.

While generally safe, certain precautions must be observed before taking a baking soda bath. Individuals with open wounds, serious infections, or those prone to fainting should seek medical advice prior to use. People with pre-existing medical conditions, such as high blood pressure or diabetes, should also consult a healthcare provider, as the body can absorb some of the dissolved sodium bicarbonate. If dizziness, increased redness, or any other adverse reaction occurs during the soak, immediately exit the water.

After the bath, a brief rinse with clean, lukewarm water is advised to remove any residue. Following the rinse, gently pat the skin dry with a soft towel. Applying a moisturizer while the skin is still slightly damp helps to lock in hydration and maintain the skin barrier.