I stumbled upon this page because my dermatologist wants me to start new shots for my psorisis. In the past I had gotten kenalog. Like most of you my dermatologist told me there were virtually no side effects from it. My period also lasted forever when I received kenalog shots. I discussed this with my dr. and he said it could be from the kenalog. I was given a shot every 2 weeks for a couple of years. One day I had a bandaide on my arm and when I took it off I had a bruise. I showed my dermatologist and his comment was "Oh I guess your skin's getting quite thin." Which is a side effect he never told me about. Later this dr. was off for a while and I went to another while he was out. This dermatologist told me that kenalog is not good for the body, it works on everything your eyes,bones, veins to name a few. He told me it thins your bones and blood vessels. I couldn't beleive that the other dr. told me there were no side effects. I also noticed after getting the shots I had a hard time breathing but was told it should help me breath easier. I think I have a lot of problems from receiving those shots. That's why I thought I would researdh the new shot (Endrel) they want to give me before I receive it this time.