Start with '''unplugging''' the device from the wall.
Then '''wash hot water''' from the tap over the area where the '''threads are located'''.
Try to '''NOT get any water''' somewhere it '''may get into the device''' since that '''may damage''' components on the inside.
I don’t know if it will help with this, but it’s worth a try. I usually work for most things like jars, bottles etc.
'''Hope this helped! :D'''