If you have recently been sick with a cold or flu, the idea of germs lingering on your toothbrush can be unsettling. You may be wondering if it is necessary to replace your toothbrush after getting sick to avoid the risk of reinfection.

How do germs spread on toothbrushes?

The mouth is full of bacteria, viruses and fungi, including the ones that cause colds and flu. When you brush your teeth, some of these microbes can get trapped in the bristles of your toothbrush.

If you have a cough or sneeze, the germs can also be spread to your toothbrush if it’s nearby.

When you’re sick, the virus or bacteria can live on surfaces such as your toothbrush for up to 72 hours, according to the Centers for Disease Control and Prevention (CDC).

Can you get re-infected from your toothbrush?

It’s possible to get re-infected with the same virus or bacteria if you continue using your toothbrush after being sick.

The germs can live on the bristles and handle of your toothbrush for up to several days, and if you use the same toothbrush, you may be re-introducing the germs into your system. However, it’s important to note that not all illnesses can be spread through a toothbrush.

Related Article How often should we replace our toothbrush after being sick?

When should you replace your toothbrush?

The American Dental Association recommends changing your toothbrush every three to four months, or when the bristles are frayed or worn.

If you have been sick with an infection, it’s a good idea to replace your toothbrush once you start feeling better. This can help prevent re-infection from any lingering germs on the brushes.

What if you can’t replace your toothbrush?

If you can’t replace your toothbrush for some reason, such as being away from home, or being financially unable to buy a new one, there are some steps you can take to reduce the risk of reinfection:.

• Rinse your toothbrush thoroughly with water before and after brushing.
• Soak your toothbrush in an antiseptic mouthwash for a few minutes to kill off any germs.
• Place your toothbrush in the dishwasher to sanitize it. You can also soak it in a solution of water and vinegar or hydrogen peroxide to kill bacteria.
• It’s also important to avoid sharing your toothbrush with others, no matter how close you are to them.

Conclusion

While it’s not absolutely necessary to replace your toothbrush after getting sick with a cold or flu, it’s a good idea to do so to prevent re-infection from any lingering germs.

If you can’t replace your toothbrush, take steps to sanitize it thoroughly before using it again. However, it’s always a good idea to replace your toothbrush regularly to maintain good oral health regardless of illness.