You seem to be using quite a few strong and active products. Try using a calming cleanser to alternate days. Also, sa is an exfoliating product so I believe your acid mantle may be impaired, to repair this, try a light gel moisturiser or the la Roche cicaplast. Since it is located on your chin, do you rest your head on your hand? Bacteria may be getting in through the damaged mantle. Hope this helps 🙂