How to treat a permanent red skin on face?

I have had a red face since about three to four years ago. I am not completely sure of the cause but I highly suspect it is from sunburn. Back in those days I had school and afternoon when I walk home I have no shade to protect me at all. The walk was about 10-15min under the full sun. I do apply sunscreen but not ALWAYS. So it is my fault. But Im here for any treatments not for self regret.

Both sides of my face has this redness but left side is more severe. It covers from under my eyes all the way to the jaws. The right side is better and only limits to upper portion. The appearance of these are almost identical to red face when you exercise too much, only they stay there forever and wont go away.

The redness is not really intense as if Im going to explode, but it is surely visible.

So is there any possible home remedies for this redness to be reduced or eliminated? I dont want to go to a specialist as that would cost me a fortune and as a student I have no money for that.

Thanks