These problems can be eased greatly by using natural oils and butters. There are many companies producing Lotions and Balms now that use only natural ingredients. All lotions and balms on the market should have preservative in them. Many believe preservatives will harm you...but this in not true in the amounts used to keep these products from going bad.
To use balms and lotion properly , your skin should be as wet as possible when applying. The best time is before you dry off after showering or bathing. You should put on just enough to lightly cover the areas you are having problems with. Massage it in to the point you can't feel the balm or lotion anymore then put another thin layer on massaging that in also. Dab dry the problem areas and go on about your day. If at anytime during the day you feel like you should put more on, do it. You can even put another light layer on after you've dried off. This should be done at least once a day for mild skin problems and at least twice a day for Psoriasis and Eczema.
For lip problems, there is nothing better than all natural oils and butters. There is usually no need for preservatives in them. Lip balms can even be used on dry skin, psoriasis, and eczema areas at times when you don't have a jar of lotion or balm with you. A lip balm tube with no flavor in it will do just fine. If you are out and about, you can buy a bottle of water and wet your skin with a clean napkin, then apply your balm or lotion.
Try letting the sun and fresh air at your body also. The sun makes us live.
Follow these simple methods, and your skin will be vibrant.