Yes, a black doctor going by the name of Cuthbert Simpkins has developed a treatment for patients that can increase the oxygen levels. Cuthbert Simpkins, MD, physician scientist and founder of Vivacelle Bio Inc has developed a treatment called VBI-S that increase levels in COVID-19 patients from his firm..
Cuthbert Simpkins goes on to say that 70% of deaths from the COVID-19 stem from septic shock. The treatment VBI-S could recover lives of patients going through COVID even if the treatment they are being provided has failed by shifting the balance of nitric oxide effects to survival. This is an experimental drug at this time and if interested, you can find more information through ClinicalTrials.gov