• Papules: Circumscribed, solid elevations of skin with no visible fluid, varying in size from a pinhead to 1 cm. They can be pink, red, brown or purple in color.
• Pustules: A small raised spot on the skin containing pus.
• Blisters: A small bubble on the skin containing fluid.
• Plaques: A skin lesion described as a papule or a group of papules equal to or more than 1cm.
• Allergen: A substance that can cause allergy.
• Autoinoculation: literally means implanting within the self.
• Immune System: The system of organs and processes of the body that provide resistance to and protection from infection and toxins. Organs include thymus, bone marrow, and lymph nodes.
• Auto-immune Disease: Diseases in which there is an immune response against body's own normal organs and tissues.