Inflammation injection and scar prevention after extraction of frequent skin troubles and milia

Even though I am an adult, I am troubled by the constant, recurring breakouts of pustular acne and small whiteheads around my chin and cheeks. In particular, hard and painful large pimples appear during my menstrual cycle or on days when I am under a lot of stress. I am afraid to even touch them because I am scared that squeezing them incorrectly at home might leave scars or cause a secondary infection. I would like to know if it is possible to receive anti-inflammatory injections (steroid injections) for red and swollen inflamed acne areas at Maypure, along with professional acne skincare. I am curious if the swelling usually subsides within a day after receiving the injection. I am also concerned about potential side effects, such as the skin sinking in at the injection site; please explain in detail if there are any tips for preventing this.