Well, sort of, but not much. It'd mainly depend on what your options might be. The salinity in most oceans is quite similar to the body's, which is a good thing for cellular growth. (clean)Ocean water doesn't that much in terms of bacteria either. If your options are washing a wound with water from a stagnant pond, or the sea then the ocean is certainly a better choice.
The Roman army had the best medical care of the times. To help heal wounds there was an array of antiseptics and bandages. They were able to drain deep wounds and to stitch them.
Milk does not help heal wounds. If you have bitten your tongue, it will heal on it's own; no need to do anything.
because there saliva actually heals wounds
Honey helps wounds to heal up faster
Time heals nearly all physical wounds but rarely does it heal mental wounds.
Vinegar cannot heal wounds, it can clean out wounds so they can be healed. Essential oils and aloe vera are better products to heal skin.
Cells helping wounds heal and by protecting your body from diseases
No, not at all. The salt can actually help wounds heal faster.
Katniss's mother and sister Prim heal the wounds
No. They are cells that help heal wounds on your skin. Blood vessels are arteries and veins.
The best thing you can do is just be there for them and help them get through it don't try and push them with time their wounds will heal.
Heal wounds.