Food allergies potentially causing itchy skin include allergies to wheat, eggs, tree nuts, peanuts, fish, shellfish, wheat and soy, as noted by WebMD. In children and adults, skin reactions to food allergens range from u... More » Health Pain & Symptoms

An itchy back can have a variety of causes, including allergies, skin conditions, dry skin and internal diseases, according to Mayo Clinic. Certain substances, such as poison ivy and cosmetics, as well as certain foods c... More »

If the cause of the itching is simply dry skin, this can be remedied by switching from dry foods to moist foods and adding some probiotics to the dog's meals. If allergies are the cause of the itching, fish oils and anti... More » Pets & Animals Pets Dogs

The most common causes of food allergies are milk, eggs and fish, as well as crustacean shellfish, tree nuts and peanuts, according to the University of Nebraska-Lincoln. These six foods, along with wheat and soy, make u... More » Health Conditions & Diseases Allergies

Some of the most common foods that can cause allergies are peanuts, cashews, milk, soy, eggs, fish and shellfish. Approximately 90 percent of food allergies are attributed to these different types of foods listed, states... More » Health Conditions & Diseases Allergies

Peanuts, tree nuts, milk, eggs, wheat, soy, fish and shellfish are the foods that cause the most allergic reactions, explains Food Allergy Research and Education. Only around 5 percent of children and 4 percent of adults... More » Food Food Facts

Seborrheic dermatitis may be irritated by foods such as dairy or peanuts, soy, wheat, citrus, corn, tomatoes, eggs and fish reports the University of Maryland Medical Center. It is also possible for saturated fats found ... More » Health Nutrition & Diets