Decrease sensitivity during whitening with desensitizing gels or tooth paste consisting of potassium nitrate or fluoride
https://www.mediafire.com/file/m1mcreyappe4crf/pdf-11427-7263.pdf/file
Reduce level of sensitivity during whitening with desensitizing gels or toothpaste containing potassium nitrate or fluoride, and follow rest days in between sessions if required.