If you watch the whole clip on youtube you will see he did not tell anyone to inject or do anything at all, he was asking a question to the doctor to his right for avenues of research.
Basically he was spitballing, which imo he should not of been doing on the podium (cause he knows the media hate him) but it is nowhere near as bad as it is being made out to be at all. There is nothing wrong with what he suggested, when aimed at a medical researcher.
UV light is being used to kill the virus under certain circumstances, it is possible there could be a medical avenue to use this in some fashion.
Ethanol is a disinfectant, which can be used under medical supervision to treat pulmonary edema (fluid accumulation in the lungs).
Quote:
Medical applications
Inhalation of vapor obtained by nebulization of water and ethanol in oxygen has been used in treatment of pulmonary edema in humans.[10] Alcohol vapor acts as an anti-foaming agent in the lungs, so the sputum becomes more liquid, and can be easily expelled. The method has also been used to reduce the alcohol withdrawal syndrome in patients who had intestinal tract surgeries.[11] The use of ethanol vapor has also been proposed as a potential method of inactivating respiratory viruses, such as SARS-CoV-2, which are present in the respiratory tract. [12]
Inhalation of vapor obtained by nebulization of water and ethanol in oxygen has been used in treatment of pulmonary edema in humans.[10] Alcohol vapor acts as an anti-foaming agent in the lungs, so the sputum becomes more liquid, and can be easily expelled. The method has also been used to reduce the alcohol withdrawal syndrome in patients who had intestinal tract surgeries.[11] The use of ethanol vapor has also been proposed as a potential method of inactivating respiratory viruses, such as SARS-CoV-2, which are present in the respiratory tract. [12]
https://en.wikipedia.org/wiki/Alcohol_inhalation