This is set in a medieval world, where the only magic that exists is the magic of the four elements: fire, water, earth and wind.

When someone is hit by elemental magic, they sustain magical damage according to the respective element. For example when you get hit by a fireball, you will get burned by the fire. When you are hit by a blizzard, there's a chance you will get a frostbite. *It's like in the real life.* So there's a bit of science here, but **not as strict.**

However, for an important plot point, I would like this magic damage to be reversible **when it is dispelled**. The burn will disappear, as if you never got hit by the fireball in the first place.

**How to explain this phenomenon? How can a magic system explain this?**

The magic system is not set in stone, however what I have in mind is an avatar-style elemental bending. Ideally, the answer should also explain how the dispel process works after the target suffered damage.

**For example**: the *Dispel* spell uses anti magic particle (similar to anti matter). When it collides with the magic particle, both particles are destroyed.