Review on Oral B Sensitive Electric Toothbrush Replacement by Kassie Gauthier

I have been using this product for seven years now. I really liked her until recently. The last three attachments (sensitive) I've used were terrible. Black mold appears on the inside of the brush head handle. I can't understand why. I use them as always. After each use, I remove the brush head to let it air dry for 24 hours. Now it doesn't matter. mold grows! So now I spray the Qtip with Lysol and wipe it down from the inside. It doesn't last. Now I seal all the holes with tape. It helps, but it's ridiculous. What happened? Anyone else know? I hope they fix this.