Atopic Dermatitis (Eczema): This is the most common cause of pruritus in children, characterized by itchy, inflamed skin that can appear anywhere on the body, including the chest, back, arms, legs, and ears. The absence of fever and the age of the patient support this diagnosis.

Allergic Contact Dermatitis: This condition occurs when the skin comes into contact with an allergen, causing an itchy, inflamed reaction. Common allergens include nickel, latex, and certain plants.
Insect Bites or Stings: Insect bites or stings can cause pruritus, especially if the child has an allergic reaction to the bite or sting.
Scabies: A contagious skin infestation caused by the mite Sarcoptes scabiei, characterized by intense itching, especially at night, and small bumps or blisters on the skin.
Seborrheic Dermatitis: A common skin condition that causes a red, itchy rash, often on the scalp, but can also appear on other oily areas of the body, such as the face, ears, and chest.

Malignancy (e.g., Lymphoma, Leukemia): Although rare, certain types of cancer can cause pruritus, and it's essential to rule out these conditions, especially if the pruritus is severe, persistent, or accompanied by other symptoms like weight loss or fatigue.
Hepatic or Renal Disease: Certain liver or kidney diseases can cause pruritus, and if left untreated, can lead to severe complications or even death.

Kawasaki Disease: A rare condition that mainly affects children, causing fever, rash, and swelling, but can also cause pruritus in some cases.
Thyroid Disorders: Certain thyroid conditions, such as hyperthyroidism, can cause pruritus, although this is relatively rare in children.
Neurological Disorders (e.g., Neuropathic Itch): Certain neurological conditions can cause pruritus, often without any visible skin lesions, and can be challenging to diagnose.