Does it mean its working?

I use the Crest 3D whitestrips and when i put it on, it would sting my gums and i dont know if its melting my gums or some chemical reaction. Is this normal?

Glow Resources

Let’s Glow

Glow is here for you on your path to pregnancy

Glow helps you navigate your fertility journey with smart tools, personalized insights, and guidance from medical experts who understand what matters most.

25+ million

Users

4.8 stars

200k+ app ratings

20+

Medical advisors