semi-constant redness

Hi there! For a month I have been struggling with an area of ​​my face that very often shows redness. I’ve tried to avoid any actives in the area, and every night I put Cicaplast Gel on it, but nothing seems to work. It’s funny cause the other part of my face is perfect. Any advise please?! 😭 I’m using different actives like retinaldehyde, vitamin C and acids, but I haven’t put nothing on this area since then. Any of those actives have shown problems in time.