Methylprednisolone
"I had not been stung by a wasp in 28 years and then within a week got stung twice. The first time I did not go to the doctor for 24 hours and got a cortisone shot and had a lot of swelling, itching and burning. 6 days later got stung again and this time my hand swelled and burned and I went to doctor right away. I got 6 day dose pack and was instructed to take the first day dose all at once then follow instructions for remaining 5 days. About an hour after taking medication the itching, burning quit and by morning there was no swelling or pain. Now I have to keep an Epipen with me."