A bacterial infection of the vagina can feel a lot like a yeast infection if the vulval area is itchy or painful. Unlike a yeast infection, the discharge can be dark yellow, green, or brown and it won't smell like bread, it can smell like fish or something rotting.
GERD can and does cause upper back burning sensations that can migrate down one side or both sides of the body to the legs. Sometimes pain or symptoms may occur in the chest or sternum area but not always. GERD can also cause a recurring cough and fatigue.
Your doctor also may want to evaluate your itchy upper back to rule out internal disease. Liver disease, celiac disease, iron deficiency and thyroid issues may cause itchy skin on the back, according to MayoClinic.com. Treatments If itchy upper-back skin is caused by dry skin, moisturize the skin daily. Use moisturizer after getting out of the bath or shower to lock moisture in place. Taking an oral antihistamine and applying corticosteroid cream to skin on the upper back can reduce inflammation and itchiness, according to MayoClinic.com.