I got a nasty skin condition from shaving

Key Points:

• The author experienced underarm dermatitis in February 2026, caused by using an old razor and expired deodorant, leading to itchy, irritated, thick, and discolored skin.
• Underarm dermatitis includes irritant and allergic contact dermatitis, often triggered by substances like deodorant preservatives, fragrances, or sweat, and can worsen if untreated, sometimes resulting in chronic eczema.
• Treatment involves minimizing irritation by avoiding shaving and deodorant use temporarily, applying topical steroids, and using lightweight, fragrance-free moisturizers to repair the skin barrier.
• Experts recommend moisturizing underarm skin regularly with products containing ceramides or lactic acid, using fresh razors, and being cautious with natural deodorants containing baking soda, which can disrupt skin pH and cause inflammation.
• For persistent reactions, allergy testing is advised to identify specific allergens, and transparent ingredient labeling helps consumers avoid irritants; with proper care, the author’s condition significantly improved after several months.