Winter is that time of the year when even the oiliest of skins tend to develop some dry characteristics. It is important to provide proper moisture and nourishment to the skin especially in these cold winter months.
Nothing you apply externally would give you desired benefits, if you are not taking proper internal measures. Eat warm freshly cooked food and sip warm cups of herbal tea throughout the day. But yes of course, no tea and coffee. They further dehydrate the body and skin giving it a dull texture and appearance.
Consume lots of fresh fruits, vegetables, low fat dairy, legumes, pulses, etc. However, when it comes to fruits, you can consider making stews instead of having them raw and cold. According to the five thousand year old healing system of Ayurveda, having a cooked apple everyday in the morning imparts optimum nourishment do the body while also boosting its disease fighting capacity.
As for external applicants, it is time that you developed a distance with your favorite bar of soap and switched to a much gentler cleanser for both body and face. It is very tempting to take long hot water baths but they can be disastrous for your health and beauty. Try to take bath with lukewarm water as much as possible. And if you must take bath with hot water, do not extend it beyond five minutes. Apply a moisturizer immediately after stepping out of the shower while your skin is still quite damp.
You should also do a warm oil massage before taking bath (preferably with warm sesame oil). You can add any essential oil suitable to your body and skin type to it. Massage in circular motions starting from feet to the head.
Two big mistakes that people tend to make in the cold winter months is drinking less water and not taking adequate sun protection. Drinking ten to twelve glasses of water is as important as ever. But it would be more beneficial if you have it lukewarm in such extreme weather. Also, do not forget your sunscreen and umbrella the next time you step out of your house. It can go a long way in saving your skin from te havoc the sun can play. Oh yes, the sun is still as harmful as ever!