I have some mild burning pain in lower left abdominal area that also hurts to the touch.no fever, vomiting and stools are okay.should i be concerned?

Burning skin: A burning sensation in the skin is usually caused by pressure on a nerve in the skin, a symptom of neuritis. The lower abdomen is a common place to have such symptoms, particularly if you have ever had prior abdominal surgery--appendix, hernia, c-section, etc. What happens is that during the healing process in the skin, a nerve to the skin gets trapped in the scar and gets pinched over time.

Could be shingles: There are many possible causes, even the early phase of shingles.