Hello and welcome to HCM,
At the offset let me assure you that in the history of a
throat infection, the appearance of
lymph node is most probably a benign problem and you will have nothing to worry about.
Nevertheless since you are already on
imuran and
azathioprine there is always a chance of nodal enlargement due to other causes.
To be on the safer side and to confirm this, you can take a test called FNAC of the node as well as CT of the neck and get back to me with the reports.
Meanwhile if you have not taken a course of antibiotic for your throat infection, you may start a course of antibiotic like the amoxycillin-
clavulanate 625 for five days and see if this helps in reducing the nodes.
do not worry and get the tests done if the nodes do not reduce
take care and get well soon
Dr Sriram Nathan
ps: You need to mention why you were taking imuran and azathioprine so that we can help you out better