Hi madam,
Symptoms : back pain
Cause : prolonged sitting- can be  ? wrong posture, ? weak muscle 
Duration : 2 years 
As it is chronic case it may take little more time , 6 sessions are not sufficient 
your therapy many include 
pain relieving modalities 
posture correction( ergonomics at your work place)
life style management
strengthening of your spine muscle (spine stabilizers, core muscles, etc)
Please consult your physiotherapist and discuss about your treatment protocol and how it can be t ... 
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