If anyone has any doubt about the meaning of “adding fuel to the flame” or to “ rubbing salt into the wound”, the following one will give you the exact meaning:
We all, the whole World were aware of the incident of the death of George Floyd and how he was murdered. The World Policeman, the truth and honest bearers of the Universe, the United State of America has prosecuting the alleged murderer Derek Chauvin. The defense of the charge is now claiming, hard to believe by any sane soul, George Floyd died of drug overdose, not as a result of Chauvin pinned down George by his neck for nearly 10 minutes!
Trump supporter and White Ultra Racist Policeman Derek Chauvin had put his knee with his full weight for 10 long minutes on the neck of the handcuffed blackman George Lloyd who was held his face down with both hands in a Police handcuff. George cried, pleaded and called his mum until death rattle slowly waned out. As he was under choke hold in front of many witnesses Chauvin twisted his knees harder and harder. A Firewoman on the scene asked the four thugs in blue uniform to check the pulse of the unconscious George on the pavement, she was prevented from getting near him.
Have a look at the video taken by a Shop Assistant: