Doesn't sound right - under the shoulder blade? Were you rolling in it? Seems a weird place for poison ivy or oak to occur. If it's poison ivy the welts will fill with fluid, become very itchy, and will burst easily when itched. The fluid is clear, not puss colored.

Be sure to wash the affected area to remove oils that can easily spread and cause additional reactions. Also, wash the infected clothes ASAP.

I once got into a very bad situation - first and only time I ever had a reaction. It was brown and dormant and I was planting a garden right in the middle of it out at a friends acreage along a fenceline - basically tilling by hand for 8 hours. Had it literally everywhere, so bad the DR gave me a cortizone and steroid shot on the spot when I finally visited him three days later. Cleared up in 36 hours - miraculous. I didn't sleep for three days before I sought treatment.

Many men go fishing all of their lives without knowing that it is not fish they are after. ~ Henry David Thoreau

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