I didn’t say acne was not a big issue for some kids. I did say rather than supporting corticosteroid injections for what sounds like not severe acne, I’d instead focus more on why it is leading to “desperation and low self-esteem” and ways to improve that.
Corticosteroid injections are not a long term solution. Changing how one reacts to the acne can offer a long term improvement. The history of depression is all the more reason to consider the psychological side as well, rather than treat it as an emergency that we need to fix in the next 17 days. Structuring the problem in this way may increase the degree of negative feelings in the likely event that there is not a successful fix in 17 days.