From your symptoms the possibility of seborrheic dermatitis
, contact dermatitis
, dry skin and eczema skin need to be ruled out. Allergic reaction is one of the important causes of eczema. Allergic reaction can occur to strong soaps, Solvents, chemicals, certain foods, food additives, plants, metals, cosmetics, even urine and faeces of some animals (dust mites).
Wash the areas several times with fresh water. Do not use any cosmetic products at the sites.