You have to be careful with skin routines and keeping them the same forever sometimes. Your skin can change over the years, and with things like break outs, they can actually basically become immune to whatever you are using. Maybe try a new soap and see if that changes anything, avoid using masks and topical creams if you can since you said you have dry skin. Those kinds of products will make your skin a lot dryer even though they do clear up any kind of acne problems, and can then cause your skin to break out more since the extra dryness makes your pores produce more oil to compensate. More oil=more acne.
This could just be a fluke thing though, are you stressed? Hormones? See if it clears up and if it doesn't then try switching soap or something.
Make sure to keep your skin extra moisturized though if you do decide to try a topical treatment. And random, but vitamin A, E, and fishoil supplements help with reducing skin redness. Don't take too much vitamin A though because that will also make your skin really dry.
And if all else fails...dermatologist!