WIll they give him other useful stuff like intravenous vitamin C? It's helpful.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7172861/

From this link above.

Perhaps, the reduction of the cytokines storm in the late stages of the Covid19 infection is the most significant application of IV Vit-C. Covid19 pneumonia is a complex medical disorder with high morbidity and mortality rate. This causes severe lung injury that results in Acute Respiratory Distress Syndrome (ARDS), a life-threatening lung disorder. This process prevents the necessary oxygen to enter into the lungs and ultimately causes death. Coronaviruses increase oxidative stress that promotes cellular malfunction and ultimately results in organ failure. It is believed that pulmonary failure (ARDS) is the principal cause of Covid19′s action on humans. This helps to increase oxidative stress considerably because of the generation of free radicals and cytokines. This process finally leads to serious cellular injury, organ failure and death. The administration of anti-oxidizing agents along with proven conventional supportive therapies is believed to have an important role in controlling these medical situations. Appropriate vaccines and antiviral drugs for the Covid19 epidemic are not available. IV Vitamin C and other antioxidants are extremely good agents for ARDS. These can be applied clinically. Importantly, high dose IV Vit-C is safe and effective. In this paper, we review the use of high-dose Vit-C as an efficient method of treatment for patients with cancers and infections.

Make sure he has enough vitamin D as well.