Back Pain

Most episodes of back pain are caused by twisting or lifting injuries or bad posture.

The main treatment it to stay mobile, avoid bending or lifting and to take Aspirin or Paracetamol or Ibuprofen (available from chemist).
You may need a few days rest from strenuous activity. Bed rest is not usually necessary and physiotherapy in the early stages may be helpful. When sitting, sit upright and support the small of the back. If the pain is particularly severe or persists for more than a few days, contact your doctor.

You may require additional medication. If you have severe loss of sensation or difficulties with bowels or passing urine - contact your doctor.

This link to the NHS website gives specific information on symptoms, treatment and prevention of backpain.