These are my thoughts - right or wrong.
Our bodies run on and are governed by hormones. If there is an imbalance of any sort then there will be signs seen. The skin is the biggest organ in the body and as such may well react to a hormone imbalance. Ask any female about her skin condition when her monthly is due. At puberty the hormones are running rampant and imbalanced. Some people get spots, some get none at all and others get boils. I had horrendous spots akin to a pizza.
Late onset T1, several auto immune issues.
Humalogmix25 twice a day, Methotrexate 25mg once per week, FolicAcid 5mg once per week, prednisolone 5mg daily, Allopurinol 300mg, Calcichew-D3 800iu, Levothyroxine 50mcg, Atenolol 50mg, Losarten 100mg, Aspirin 75mg, Nicorandil 20mg, Nitrolingual GTN spray, Metformin 2000mg, Allimemazine 10mg, Lanzoprazole 30mg, Atorvastatin 20mg, Co Codamol 8/500mg, Depo Medrone (Methylprednisolone) or double Prednisolone for 7 days in case of RA flare.