Fragrance ≠ Freshness when you’re living with MCAS. For someone with Mast Cell Activation Syndrome, strong scents—from perfumes, air fresheners, candles, or cleaning products—aren’t just annoying... they can trigger full-blown flares. Why? Because many fragrances contain alcohols, solvents, and synthetic chemicals that can activate mast cells in the skin, lungs, and nervous system—leading to headaches, rashes, brain fog, GI upset, even anaphylaxis in sensitive individuals. 💨 What can you do? ✅