How do you treat stab and burn wounds?
Answer: Depends greatly on where you are. If your at home or in an urban enviroment , stab wounds can vary greatly. But normally if the object is still embedded in the body, leave it there and get to the hospital. removal of an embedded object can cause more damage and can cause the area to bleed out worse , specially if its (plugging) maintaining pressure on a vein or blood vessels. If the object was pulled out or fell out apply steady firm pressure. They do not suggest a tourniquet any more unless under dire condition it can cause more damage if left on too long or if done improperly.
In the Case of a burn, a cold rag or ice and head to the hospital. If its not a bad burn aloe, or some burn creme anti bacterial works fine.
Now if your not at home or in an urban area (lets say hiking, camping or something hours away from no where. Any injury is more dangerous (which is why first aid gear should always be available) but if there is no first aid and you or someone with you has a deep puncture wound you can bind and pressure with a shirt/cloth, sadly sometimes a Tourniquet is required in field medicene simply cause you have no access to other means. the rule about leaving the object in is debatable in this situation and it on a case by case if you need to move (no communication) to get help leaving it in can slow or hamper movement, on a limb you can atleast pressure and tourniquet if you have to, on the torse though its better to wait for help since internal bleeding and damage can be worse after removal. Burns in the wild can be addressed a few ways, non bleeding non open burns can recieve mud packs it draws the heat out nicely, and can be used as ice would normally, or if your near a stream wet cloth. Bad burns there isnt much you can do besides hope you have first aid/medkit with you. mud packs on bad open burns is not good since it can lead to infection and infection out in no where is even worse.
In all cases its best to let a trained medical person address the situation by going to the hospital or calling the ambulance.Sadly its not always possiable though.
And in this case since they are texting and you know the person call the ambulance for them if you feel its not a hoax. i somehow feel someone stabbed and burned would seek help, i know i would..
take the injured party to hospital and they will get the best possible care