What are the substance that dermatologist inject with cystic acne?

Question

Do anyone know what are the substance that dermatologist injecting if we have a cystic acne in face?

And what brand. is that antibiotics are over the counter?

If yes i still want to know the names of the antibiotics.

Answer 1

I think you mean cortisone.

Answer 2

cortisone or A-vitamin and acetylic acid