Some studies have been conducted on the effectiveness of wearing a mask, but none have been on a scale large enough to make such claims.
Not only does Nigella sativa not contain hydroxychloroquine, but also there isn’t strong evidence that hydroxychloroquine aids antiviral activity in humans.
Health experts including the World Health Organisation suggest that there is no scientific evidence behind this theory.
When it comes to chronic diseases or severe (and unknown) infections, it is safer to stick to the recommendations of health practitioners.
The European Food Safety Authority has already said earlier this month that there is no proof so far that COVID-19 spreads through food.
Michael Ryan, Executive Director, WHO Health Emergencies Programme, said that it would be a false hope to believe that COVID-19 would disappear in summers.