Make a tea from the leaves and drink to treat colds, headaches, to calm stomach and relieve menstruations cramps. Place crushed leaves on woulds to enhance healing. Chew leaves and place on insect bites to relieve itching.

Mouse Cat enjoying Lemon Balm I have planted under one of the Oaks.
Tannic Acid from Acorns
When leaching the tannic acid from your acorns, do not dispose of the water. It has many medicinal properties and you will be tossing out a gold mine of opportunity.
Store the water in a tight container in your refrigerator and use this for a mouthwash if you happen to get ulcers in your mouth. You can use this water as a skin wash for sores, cuts, etc. as well and it will help kill the bacteria causing infection and help heal the wound. You can use this water also as an insect repellent when spending time outdoors, it is great for insect bites.
Save the water from the 2nd and 3rd boiling to use as an enema for hemorrhoids.
Honey kills bacteria. It disinfects wounds and sores. Honey can reduce ones perception of pain. It helps with asthma, sore throats, calms nerves, induces sleep and relieves diarrhea.