Food allergies
Itchy skin may be caused for a variety of reasons and it is a very common ailment. Nevertheless, if the itch is too 
difficult to handle, you should see your doctor to make an allergy test, since your dry skin may be caused by a food allergy.
Maybe you would like to keep an eye on your nourishment. If you find that a certain food gives you itchy skin, we recommend you talk to your doctor, who will tell you how to proceed. Eggs, seafood, milk, certain foods or vegetables and nuts are some of the most common allergenic foods. Always remember to ask your doctor before removing anything from your diet.
Dry Skin
Beyond allergies, there are certain foods that can make your skin dry, causing it to itch. The excess of salt will make you prone to itchy dry skin. Too much salt will imbalance the liquids in your organism and dehydrate your body inside and out.
Also sugar, fried foods, alcohol, some artificial food additives, chocolate, coffee, refined flour, artificial sweeteners and soft drinks could make your skin itchy, since they make it vulnerable to environmental damage caused by free radicals.
Besides trying to control the consumption of these foodstuff, you may use some products to help you moisturize your skin. Be really careful, since a lot of products out there on the market may contain a lot of alcohol, which will make the trouble worst. As an alternative, try to use essential oils for dry skin. Some of the best are lavender, myrrh, geranium, carrot seed, manuka and sandalwood.
We also recommend shea butter for dry skin. Shea is widely used for skin and hair care products. It will not cure the source of itchy skin, but it will certainly help ease the symptom.
Remember once again that if the itchy skin is recurrent, you should see your doctor and let him know about it.