Baking soda, often used as a natural deodorant, can sometimes lead to uncomfortable skin reactions in the underarm area. While commonly referred to as a “baking soda burn,” this reaction is typically a form of irritant contact dermatitis, which is a severe skin irritation, rather than a true chemical burn. The skin’s natural slightly acidic pH, around 5.0, can be disrupted by baking soda, which is alkaline with a pH of about 9.0. This pH imbalance, combined with the abrasive nature of baking soda, can trigger redness, rash, itching, and scaling.
Immediate Actions for Relief
Upon noticing irritation or discomfort from baking soda on the underarms, immediate action can help alleviate symptoms. First, thoroughly rinse the affected area with cool, clean water to remove any residual baking soda and prevent further exposure. After rinsing, gently pat the skin dry with a soft towel, avoiding any rubbing that could worsen the irritation. It is important to immediately stop using baking soda or any other products that may be contributing to the irritation. Applying a cool compress to the irritated skin can also provide soothing relief by reducing inflammation and discomfort.
Home Remedies for Healing and Comfort
Several home-based treatments can support healing and provide ongoing comfort. Applying pure aloe vera gel directly to the affected underarms offers soothing benefits due to its natural anti-inflammatory and hydrating properties. Aloe vera contains compounds like polysaccharides and glycoproteins that help calm inflammation and promote skin repair. Another beneficial approach involves using a gentle, fragrance-free moisturizer, which helps restore the skin’s moisture barrier and prevent dryness. Moisturizing can also reduce irritation and support the natural healing process of the delicate underarm skin.
Cool oatmeal compresses can also be effective for soothing irritated skin and reducing itching. Colloidal oatmeal contains avenanthramides, which are known for their anti-inflammatory properties that help calm the skin. To prepare a compress, a paste can be made from ground oatmeal and warm water, then gently applied to the affected area. For mild cases of dermatitis, an over-the-counter hydrocortisone cream (0.5% or 1.0% strength) can reduce inflammation, itching, and redness. This cream should be applied in a thin layer to the irritated skin, typically once or twice daily, until symptoms subside.
When to Seek Medical Advice
While many cases of underarm irritation from baking soda can be managed with home remedies, certain signs and symptoms indicate a need for professional medical attention. If the rash develops signs of infection, such as increasing redness, warmth, swelling, pus, or a foul odor, a healthcare provider should be consulted. A fever accompanying the rash is also a significant indicator of potential infection.
Furthermore, if the pain is severe and does not subside with home treatment, or if blistering and open sores develop, medical evaluation is necessary. If the irritation worsens despite home care, or if it does not show significant improvement after a few days of consistent treatment, it is prudent to seek medical advice. Recurring rashes in the same area or a rash that spreads rapidly also warrant a visit to a doctor for proper diagnosis and treatment.
Preventing Future Underarm Irritation
Preventing future underarm irritation from baking soda involves adopting alternative practices. To minimize risk, a patch test can be conducted by applying a small amount of baking soda to a discreet skin area and observing for reactions over 48 hours.
Exploring alternative natural deodorants that do not contain baking soda can be a beneficial strategy. Options often include ingredients like magnesium hydroxide, charcoal, or cornstarch, which can absorb moisture and neutralize odor without significantly altering skin pH. Proper hygiene is also important; daily washing of the underarms with a mild, fragrance-free cleanser helps remove sweat and bacteria without stripping the skin’s natural oils. Allowing the skin to breathe by wearing loose-fitting, natural fiber clothing can reduce moisture buildup and friction. Additionally, some individuals may find relief by diluting baking soda if they choose to continue using it, or by alternating its use with gentler products to allow the skin to recover.