SENSITIVE SKIN

If you have sensitive skin, you need to take extra precautions in taking care of your skin. Sensitive skin can become irritable in all sorts of weather conditions and enviroments. Suffering burns from sunlight or strong winds are common. Therefore it is imperative that you apply sunscreen lotion during the day on your face and all other areas of sensitive skin on your body. At night, you should apply cream lotion on your face too. In my opinion, you can simply wash your face daily with lukewarm water, no cleanser needed. Sensitive skin is usually not dirty, plus you might be allergic to chemicals in cleansers. If you are going to a facial cleanser to wash your wash, choose a cleanser that contains good oils like sandalwood, tea tree, or lavender. If you can, choose a cleanser that contains no or very little acid and alcohol of any kind in it. Your face might be prone to rashes or burns if a cleanser contains alcohol and acid. It is best to avoid them. DO NOT use a towel to dry your face after cleansing. Towels can be dirty and causes friction when drying your face, which could cause redness easily on sensitive skin.

Exfoliation and facial masks? I would say it's not neccessary at all for sensitive skin due to the thinness of the skin already. If you are going to exfoliate or do a facial, do it sparingly, like once every 5 or 6 months. Again, this is really optional. But try on a little bit of the exfoliation or facial mask sample first to see how it will react to your skin. If it's okay, then apply it, and vice versa. This goes the same thing if you're a woman and applying perfume or makeup, always try a very small amount first to see how it will react to your skin.

Diet is the same, just eat healthy, and no fried or fast foods. Avoid coffee and smoking as much as as possible.

COMBINATION SKIN

A majority of people have combination skin; their skin is oily and dry. The oily skin part on their face forms a T or known as the T-zone. The T-zone resides on the forehead, nose, and chin areas and the rest being dry skin areas. Combination skin are also prone to acne, but can be easily controlled. Every night while taking a shower you should wash your face with a mild cleanser(choose one that's for combination skin or with salacylic acid in it). After you finish taking a shower and dry up, apply lotion (oil-less) to areas of dry skin. In the morning, just splash your face off with warm water, dry your face, and apply lotion to areas of dry skin again. This time, you might want to apply an oil-less lotion with SPF because you are likely to go outside. Remember to only apply lotion minimally since only some parts of your face are dry, so squeeze your lotion bottle a little bit.

You should still exfoliate like every 3 weeks. But if you have mild or severe acne, I would say forget it about it. The acids in the exfoliator will probably excerbate your skin condition. This goes the same for facial masks. You can exfoliate and use facial masks if you only have light acne.
If you are going to use facial masks, I would say to just apply it on the T-zone area, your dry-skin areas are mostly clean and free of dirt if you already wash your face daily.

Drink at least a couple bottles of water everyday. Avoid smoking, alcohol, tea, and coffee as much as possible. Eat plenty of fruits and vegetables. Again, no junk food, fast food, sugary, and salty food of any kind. We all know this, but a few do it. It's true what they say: you are what you eat.

ON DRY SKIN

Dry-skin people do not produced enough sebum in their oil glands to keep their skin lubricated and moist. The good news is that dry-skin people hardly have any acne or other blemishes. Simple Vaseline will help you moisturize your skin. But a lotion aloe vera in it will be great. Apply it at least 2 times a day: morning and night. It'll be a good idea if you carry a small pocket moisturizer with you at all times, especially during the winter. If you are applying lotion morning and night, you should get a lotion with SPF for morning and a cream lotion for night. Your facial skin will feel more soft, moist, and a bit supple.

Cleansing your face once a day is enough, but do not use any soap or hot water to clean your face. It will simply dry your skin even more and excerbate the problem. Go find a aloe vera cleanser if you can, I'm sure they have it, or else use a cleanser that is dedicated for dry skin and use lukewarm water. If you are going to exfoliate, do it like only once every month, but I think it's not even necessary for dry-skin people. Dry-skin people usually have less dirt and much less oil than all other skin types.

As for diet, avoid coffee and any kind of alcohol, they will dehydrate your body and skin even more. Also stay away from soft drinks, excessive salt and sugar. Drink at least a few glasses of water everyday and eat plenty of fruits and vegetables.