Chop wintergreen leaves into halves or quarters.
Allow the leaves to sit at room temperature on a paper towel for several days to dry.
Place the dried wintergreen leaves in a 1 cup jar with lid.
Pour oil over the leaves. Add a little more oil if leaves are not completely covered.
Place lid on jar, and mark ingredients and date on the jar.
Place in a dark place for 3 - 6 months.
If desired, for a stronger salve, strain leaves after 3 months and add a new batch of chopped and dried wintergreen leaves. Infuse another 3 months.
After 3 - 6 months, strain leaves from oil.
Measure your oil in a heat proof measuring cup or mason jar. Add more olive (or other) oil to equal 1/2 cup.
Place 3 canning jar rings in the bottom of a sauce pan. Add water to cover the metal rings, plus another inch or so.
Place the jar of olive oil on top of the rings in the pot. Add beeswax to the jar.
Heat gently until the beeswax is melted, stirring occasionally. Remove from heat.
Add wintergreen essential oil, if using. Stir thoroughly.
Pour into salve container(s). Allow to cool.
Apply to joints or muscles as needed for pain relief.