<s>[INST] My son is of 8 years old and is suffering from PROBABLE IMMUNE MEDIATED CHRONIC IDIOPATHIC DEMYELINATING POLYRADICULONEUROPAPAY WITH CONDUCTION BLOCk since 2006 and is taking medicine MYCEPY 250 mg OD. hIS EMG Report is normal . Uptil how many days i will have to continue the medicine. [/INST] CDP of a chronic condition with an uncertain prognosis with episodes of relapse, remissions and progression in some patients.EMG is not diagnostic of CDP, nor it can predict complete remission by itself. Detailed neurological examination along with test like EMG, MRI, Nerve biopsy, Bone marrow biopsy etc. may be required in certain circumstances. Ask your doctor in which of the following four categories your patient fall so that you could get an idea about treatment duration.1- subacute where symptoms continue to progress and worsen for at least four weeks, but not more than eight weeks before levelling off or improving;2-chronic progressive where symptoms continue to progress and worsen for a period exceeding eight weeks;3-chronic relapsing where there is more than one episode in which symptoms progress and worsen for a period greater than four weeks; and4-recurrent GBS where each bout has a progressive phase of less than four weeks. </s>