The Color Wheel. A color circle, based on red, yellow and blue, is traditional in the field of art. Sir Isaac Newton developed the first circular diagram of colors in 1666. Since then, scientists and artists have studied and designed numerous variations of this concept.
Itchy Pekingese - Itching Scratching Series. The Pekingese quite commonly gets allergic skin disease from food allergy or canine atopic dermatitis. This can lead to itching, scratching, chewing and licking which in turn can lead to secondary skin infection with bacteria or yeast. The common skin infection in the dog is caused by Staphylococcus intermedius.
This sensitizes the skin so that new contact with urushiol causes an allergic reaction. Read more about poisonous plant allergies. Slideshow: Skin Pictures Slideshow: Photos and Images of Skin Problems. Article: Allergies: Poison Plant Allergies: Poison Ivy, Oak, and Sumac. person can be exposed to urushiol directly or by touching objects -- such as gardening tools, camping equipment and even a pet's fur -- that have come into contact with the sap of one of the poison plants. The rash that results from the poison plants is a form of allergic contact dermatitis.