Pain in the low back can be a result of conditions affecting the bony lumbar spine, discs between the vertebrae, ligaments around the spine and discs, spinal cord and nerves, muscles of the low back, internal organs of the pelvis and abdomen, and the skin covering the lumbar area.
Chronic sinusitis Chronic sinusitis, or sinus infections, cause a stuffy or runny nose, tooth pain, fever, sore throat and more. Mononucleosis Mononucleosis is a viral infection causing extreme fatigue, sore throat, fever, rash, muscle aches, and more.
Sinusitis can cause headaches, toothaches, and pain and pressure in the face. 1  Over-the-counter pain relievers can be helpful in managing the pain of a sinus infection and include: 2  acetaminophen. 3  ibuprofen. 4  naproxen. 5  aspirin.