@sandralea58, here is a link to the Neutrogena IP22 Wand: https://www.amazon.com/neutrogena-clearing-therapy-treatment-solution/dp/b0719sv6vb.
The site wants way too much money for the product, but there are many helpful reviews. The Neutrogena Wand is no longer manufactured. The wand below is sold at Walmart so you can hopefully get it, or one like it right away.
https://www.walmart.com/ip/TOUCHBeauty-2-1-Acne-Light-Therapy-Spot-Treatment-Blue-Red-Treatment-Sonic-Warming-Home-Blemishes/534576966
Every single day before the radiation session, I waved the wand around the inside of my throat and the outside area of my neck further down. Making time to do this is difficult when you are all stressed out, yet I made sure to find that ten-minute window--even if it had to be brought along in the car. Did it help with after-effects? I honestly do not know...the ability to eat, drink and speak is very humbling. You and your husband are in my thoughts. God is with you.