In such case, MAHAMRUTUNJAY MANTRA is best with VK.
You can please charge his water and food with GOLDEN SUNRISE + PAIN CARE SERUM +MAHAMRUTUNJAY MANTRA +BALANCE SERUM
Please start Self reading Meditation of MAHAMRUTUNJAY MANTRA by Sir on his behalf . Check the link here.https://litairian.com/meditation-maha-mrityunjaya-mantra/
For general instructions on any Self meditation by Sharat Sir, check this link
It also gives instruction how to do for others.
You can also do Vital Organ Balancing of his spinal cord , all joints