Taking a bath can help soothe your itchy, dry skin and give you some relief. Adding oatmeal to your bath is a great homemade remedy for itchiness. Brands such as Aveeno make colloidal oatmeal packets. This type of oatmeal is made for baths: it's finely ground and won't make a mess. Relax in the water for about 15 minutes. Apply a moisturizer after your bath while your skin is still moistened from the bath.
If you suffer from severe eczema, make sure to keep your skin as moisturized as possible. It is recommended that you moisturize at least twice daily to ease your symptoms. You can use a variety of products including bath oils, creams and ointments. Find the products that work the best for you and include them in your daily routine. There are many brands that make products specifically meant for eczema.