u/Alert_Hearing_501

For a few months (starting last winter) I’ve had issues with pimples on my neck. I thought it was due to me wearing scarves / turtlenecks a lot. It started with a few deep inflamed painful pimples that rarely came to the surface. I applied a cream called “acnes” (I believe the main active ingredient is ibuprofen) for a week and it got a bit better. Also with the weather getting warmer and me not wearing clothes around my neck anymore I thought it would clear up on its own. But by now, the skin has become very rough / textured (it feels almost sandpaper like when I wash my face), and there’s still a lot of red inflamed spots.
I went to a dermatologist two weeks ago. she took a sample from my skin and checked it under a microscope and concluded it’s not fungal acne, and prescribed an ointment containing Corectim (delgocitinib) which is supposed to stop inflammation. I’ve been using it daily for two weeks but it’s not helping, in fact I feel like the problem is getting worse again.
Can someone here help me figure out what this is and how to get rid of it?? It’s starting to make me feel really insecure and unattractive…
I’m not using any products on my neck except for ihada moisturizer and a ceramide cream. I’ve stoped applying sunscreen in that area because I thought this might be clogging my pores, but I’ve seen no change so far after a few weeks. I haven’t made any changes to my hair products / laundry detergent etc since before this issue popped up.