To recover your health while dungeon exploring, you can bring potions with you in your rucksack. The medicine can be purchased from Edward's clinic or you can make it yourself with the dispensing counter built into your house upgrade.
Status recovery potions are fairly easy to produce, but you will need to hunt down the seasonal wild grasses necessary to mix them. The HP recovery potions can only be produced if you have Empty Bottles. There are 4 available in the game:
- Check the dresser to the right of the fireplace inside of Mist's house
- Down in Jasper's basement, investigate the pile of boxes in the southeast corner
- Win the Egg Contest on Spring 23
- Win the Exploration Tournament on Summer 26
The other types of medicine you can make with your Pharmacy counter can permanently increase the stats of your character. You can customize your hero to have a lot of Dex, more Strength, or increase his Intelligence needed for more powerful magic spells.