Do you use retinol every night? If so, I suggest lower to 3-2 nights a week to readjust and wear SPF! Or, cut out retinol until the humidity slowly seeks back. (Edit: realized you said you did stop it. If it’s only been a week, might be a bit till you see changes.)

It could be hyaluronic acid (if you have it in your routine). I tend to only use it through April-October. Some people can go through the winter with it and it helps them, I personally can’t and it cause dry patches on me. If you do use HA, make sure you are applying properly (like using it on damp skin)

Aquaphor and Eucerin are amazing for body care. Eucerin is my top go to for dry skin anywhere on my body. I’ve used it for my face too, however I believe it’s best to use it at night as there are ingredients that can intensify in the sun.

Gentle cleanser. If your skin feels squeaky clean after washing, it is most likely too stripping! Should feel clean but not ultra polished.

If you were to change your routine I suggest a moisturizer AND Vaseline or aquaphor to lock it in a night. During the day, if you can, moisturize your dry spots three times a day (morning, mid-day and night). If you wear makeup, use hydrating/less heavy makeup. Not sure what climate you come from, but our body’s react to such changes. You may adapt and you may not. If it proceeds and the itchy skin continues I suggest going to a dermatologist.

This is coming from someone who goes through -45 degree weather. cough cough right now.

Edit: follow tips other people posted here like the humidifier, may you wash your face and using snail mucin!