How do you heal Pokemon in Pokemon GO?

From the main menu (click the Pokeball from the main screen), choose Items, then choose a potion. One you do that, it will display any of your Pokemon that are hurt, and if you click on one it will apply the potion you selected. If you need to heal more than one, you can just click on another Pokemon to apply another of the same kind of potion.
  • The regular Potion (purple) will heal 20 points.
  • The Super Potion (yellow/orange) will heal 50 points.
  • The Hyper Potion (pink) will heal 200 points.
  • The Max Potion (blue) will heal your pokemon completely.

If you want to use a different potion, you need to back out to the Items list and select a different one.