It is good if your son can wear White Umbrella Deity protection and the Ten Wrathful Deities protection.

Both parents should do Lama Tsongkhapa Guru Yoga and then send light to your son, freeing him from thoughts of suicide created by spirit harm. You can make strong prayers for him to start to practice and purify negative karma.

Then strongly dedicate the merits for your son and for all the sentient beings to be healed from the COVID-19 virus and for those who haven’t had the virus to not get it.

Also, read the Amitayus Long Life Sutra (Tse Do) five times.

[Find links to these practices in the FPMT Catalogue.]