I got stung by a hornet or wasp or whatever - no stinger was left in, just stung - on my left upper inner arm. The swelling now has gone down below my elbow, red, elbow feels likes it bruised, throbbing in hand and now itchy. I have some Triamcinolone Acetonide Cream 0.1%. Will that help? I'm 51, 5'6" approx. 155, good health.