Aspecific back area itches: upper left 1/4 area. often severe. sporadic. what does this mean?

Itchy area: It could be due to a dermatitis involving that specific local area, such as contact dermatitis or fungal infection. The area should be examined by a physician to find out exactly what this means.

Back itching: This may be a condition called nostalgia paraesthetica, a localized itch most commonly localized to just below the scapula on one side - see http://rarediseases.Info.Nih.Gov/gard/disease.Aspx?Pageid=4&diseaseid=7225. Of course, it's impossible to make an accurate diagnosis without examining the area. Other causes are possible, so see your dermatologist.

Nostalgia parastheti: This is a localized itching or even burning sensation on the upper back which will become disclosed from scratching and rubbing. There is damage to a small nerve fiber .Treatmentvcan include topical steroids and anesthetic, for resistant cases an injection of dilute steroids and anesthetic can improve the condition.