10/22/2025
Most people recover from a cold or flu and go right back to using the same toothbrush — but that simple habit can bring the same germs right back into your mouth.
Toothbrush bristles can trap bacteria and viruses, including Streptococcus, Influenza, and even Staphylococcus aureus. Research shows these microbes can survive for days, especially in a moist bathroom environment.
Every time you brush after being sick, you risk reintroducing those pathogens to your mouth — or even spreading them to family members if toothbrushes are stored close together. The result? A higher chance of reinfection, sore throats that come back, and delayed healing.
Experts recommend tossing your toothbrush after any illness involving fever, sore throat, cold, flu, strep, or COVID-19. Replace it with a fresh one once you’re fully recovered. It’s a small but powerful hygiene upgrade that keeps your immune system focused on recovery — not fighting the same infection twice.
🪥 Pro Tip: Always store your toothbrush upright, uncovered, and away from others. A clean brush equals a cleaner mouth — and a stronger body defense.
