Hello, Welcome and thanks for posting your query to the forum. I can understand your concern for the dry skin and skin rashes. After reading your query it appears that you have contact allergic dermatitis due to various causes. The itching and skin rashes could be due to variety of factors including environmental factors and all the things coming in contact in day to day life. IN your kind of patients I generally go for a Patch test to determine the various possible causes of the sensitivity and allergy to skin. I prefer to give a topical steroid and an oral steroid with antihistamine such as cetrizine to completely cover the allergic phenomenon. Additionally moisturizing the skin with plenty of moisturizers and humectant helps a lot in reducing the dryness. I suggest you to meet a dermatologist to get further guidance. All the best.