Thanks for writing in.
These blisters are burns which are easily subjected to bacterial superinfection
. Given that this gentleman is currently bedridden, this can prove extremely dangerous in him. These blisters would heal on their own. The area needs to be kept scrupulously clean and you can apply silver sulfadiazine
ointment and neosporin
powder to prevent the infection.
Do not rupture them as the fluid will get absorbed on their own.
Hope this helps.