My side and lower back on my right side always feels itchy. not itchy on my skin but more inside of my body i don't know how to explain it?

Neurological itch: The feelings of an itch are complex and fascinating. People often think of an itch sensation as something related to the skin, which it often is. However, can also get an itching sensation from a pinched nerve. If the sensation is in the distribution of a nerve, like from the lower back to the leg, an irritation or inflammation of the nerve root in the lower lumbar spine can cause this.