I received a shot in the upper arm for hives about a year ago. I believe it was hydrocordizone. It was red and had a good size lump. For many months after it would flare up the become sore, hot and swollen again. It still is sore and has a bruise still after a year. What could cause this?
Hi, Without an exam, I can only give general information. There are a lot of possibilities. If the stinger was retained, then there are a lot of reactions to it that are possible. And, re-exposure to something someone has had a reaction to can produce a reaction in the area of the previous exposure. Hope I have answered your query. Let me know if I can assist you further.