While giving ghusl to the Marhuma, there was a lot of blood coming out from the mouth. As we are taught in Fiqh rules, we have to flush out as much as we can to eliminate najasat. However, due to the current situations is it okay to leave the blood inside the mouth?

If you fear that there might cause an infection or it’s dangerous to those performing ghusl, then it’s ok to leave it. Perhaps place cotton inside the mouth to avoid the shroud becoming najis