I made a post a few weeks back about the same thing. I didn’t get any responses as to what it might be. I just ignored it and continued on assuming it would just go away after sometime, but it only has gotten itchier and has started expanding. I’ll attach some pictures followed by what it was like before. Like I said in a previous post it feels and react similarly to mosquito bites only really itching when rubbing against and or making contact with smth. I assumed bug bites and possibly dirty sheets? When I reverse google searched it eczema/dermatitis adjacent results appeared. (Up close it is a bit more scaly and bumpy which my camera has a hard time picking up) I cannot afford to go to a dermatologist and I do not have a primary doctor due to moving. If need be I could find a way to a doctor but I’d like to avoid that to unless it’s the only option. I would really appreciate any comments or advice if anyone thinks they may possibly know or have had something similar. Sorry for any format and or typing errors.