Anyone familiar with Steriod use - injection

Ugh my husband decided he is going to start using steroids to “bulk up”. I am so anxious about the whole thing. He’s been doing it for a couple weeks now and he recently has some swelling in his butt around his sciatica nerve and said when he walks his lower spine feels like pins and needles.

Anyone familiar with this? I googled and now I have him becoming paralyzed but I’m so anxious and really wish he had talked to me about this nonsense before he just went ahead and did it.

- I’m even sure if I’m looking for advice. My husband is a pig headed Italian who doesn’t listen to anyone. I am not in anyway encouraging use of it. I did actually print out pictures today and am going to start putting them in his lunch box and truck. I think he is being stupid.