A freshly made batch of jewelweed (impatiens capensis) salve is of limited quantity. This is sort of a once-a-year thing - I use fresh plant material which I wild-forage from my organic farm property. When these are sold, there will most likely be no more till next year!
This product contains no preservatives other than Vitamin E, so it must be stored in the refrigerator after opening. I would also suggest that you use a clean cotton swab to scoop the salve from the container, and not your fingertips. Use a clean swab each time. This will also help keep it from molding.
Poison ivy. There, I said it.