I think this redness is irritation. Your skin looks fine. You are fair so redness is more common. Try to use an anti redness cream. Loreal cc cream for redness( the green one) is awsome and feels like nothing on.

You can use caladryl or caladryl clear lotion. It helps in soothing sunburns, prickly heat, insect bites and minor skin irritations like yours. Apply it before going to bed and wash it off in the morning. I've done this before and got rid of the redness within a week. All the best

Thanks everyone hopefully one of the things suggested will help !