Yes that means that your body is fighting the infection and trying to process out the toxins- it's those toxins that are making your lymph nodes swell because they are full of debris from your blood. You can do your own Lymph massages:
/www.youtube.com/watch?v=QA-wi0d7-Ro You can also use warm compresses on them to help ease them.
Seems your body is working with the herbs well then! Congrats. Keep up the detoxing though, as you release those toxins from the lymph nodes, those toxins still have to find their way out of the body.