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Old cologne can fade, smell sharp, or turn sour as air, light, and heat break down its aroma oils.

Old cologne can fade, smell sharp, or turn sour as air, light, and heat break down its aroma oils.

Cologne in hair can leave dryness, frizz, and scalp sting because its alcohol and fragrance oils sit on hair and skin.

Ingesting cologne can cause alcohol poisoning and stomach irritation; call Poison Control right away, or 911 for severe symptoms.

Spraying body spray into your mouth can sting, trigger coughing, and upset your stomach; rinse, sip water, and call Poison Control if needed.

Deodorant on neck can block sweat and cut odor, but it may sting, clog pores, or trigger a rash if your skin reacts to fragrance or salts.

Washing your face with milk can feel soothing, but it can clog pores or sting; patch test first and rinse well.

No, men’s deodorant hasn’t been shown to raise Alzheimer’s risk; the aluminum rumor doesn’t match current evidence.

If deodorant gets in your mouth, expect irritation and nausea; rinse, spit, and call Poison Control if you swallowed any.

Inhaling deodorant spray can irritate your throat and lungs, causing coughing or wheezing, and heavy exposure can turn into an emergency.