My daughter got elbowed left of her throat now it's swollen and sore what should i do?

Moist heat: Applying moist heat after the swelling has stopped, will help reduce swelling. Apply often, excess blood and fluids from injury will the be resorted faster. Also try homeopathic remedies for trauma. Those remedies containing arnica montana are especially helpful in speeding up recovery. Vitamin shoppe and the like usually carry these.