Kitty litter that is made from clay or bentonite is slightly radioactive. GK Hart/Vikki Hart, Getty Images Cat litter is sufficiently radioactive that it can set off radiation alerts at international border checkpoints. Actually, it's not all cat litter you need to worry about -- only the stuff made from clay or bentonite.
Deep folliculitis is usually more severe. Follicles are densest on your scalp, and they occur everywhere on your body except your palms, soles, lips and mucous membranes. Damaged follicles are at risk of infection. The most common causes of follicle damage are: Friction from shaving or tight clothing.
Some of the factors that cause sores on the scalp include: 1  Bacterial infections, which include impetigo. 2  Climatic conditions such as cold weather or dry environments. 3  Contamination of the hair follicle.  Deficiency of certain vitamins and nutrients in the 1  body. Excessive stress.  Fungal infections like 1  ringworm. Head  lice.