This infection may increase post-nasal drip. If you suspect that you have a sinus infection, you should see your physician to see if it needs antibiotic treatment. Chronic sinusitis occurs when sinus blockages persist, causing the lining of the sinuses to swell further.
Causes of Pain in Left Side Back. 1  Pregnancy: Back pain especially on the left side, is very common in pregnancy and happens for a few reasons. As the child develops in size, the uterus can pack torment delicate structures including nerves. 2  Kidney Infection: Kidney diseases can cause left side back pain.
Left lower quadrant pain is the name commonly used to describe pain in your lower left part of the abdomen. Lower left abdominal pain is usually linked to the digestive tract. However, the condition can also be related to complications of the skin, reproductive organs, urinary tract, body wall or the blood vessels.ower left abdominal pain is usually linked to the digestive tract. However, the condition can also be related to complications of the skin, reproductive organs, urinary tract, body wall or the blood vessels.