Apply ice pack. Avoid forward bending. Avoid long time standing.

you may have acute onset of slip disc ,apply ice for 20n mints for twice a day Meet Ortho or physio immediately They may do some test like vitamin B12,d3 May give you some muscles relaxant Physio will give you mild stretching and electrotherapy for pain management Don't take pain killer or muscle relaxant fot long as they have side effects 2 to 3 weeks physio will help to cure you

Chiropractic Mobilization will help. Do the cat/cow stretch. Get on all fours, with your arms straight and your hands directly under your shoulders; your knees hip-width apart.

Physiotherapy treatment will help you and stretching exercise

Rest, stretch, strengthen back muscles and apply hot pack or cold pack. Try these for few days and if you still have back pain then please make an appointment with PT.