Can anxiety or stress prevent or disrupt the swollen lymphnodes return to normal faster?

No: No that I am aware of. Lymph nodes (lns) that increase in size (lymphadenopathy) with an acute illness -- eg strep throat, viral infection, etc. -- and return to normal are normal. Lns that increase in size or that do not shrink need further evaluation.

Not enough: Anxiety is closely related to fear. A "flight/flight" response, with hyper-activation of our survival mechanisms, accompanies anxiety. (the stress response.) this response includes changes in the body's level of natural steroid hormones ("stress hormones"). All steroids can slow down healing. However, this is unlikely to be noticeable unless severe.

No: Anxiety and stress are intimately related to the immune system in ways we don't completely understand. However, it is unlikely that stress is the underlying cause of the lymph nodes being swollen, and unlikely that it is preventing the lymph nodes from returning to normal.

No I dont think so: I don't think that anxiety can prevent the swollen lymph glands to be normalized faster. Lymph glands enlargement can be caused by many things- like infection- bacterial, viral, or by autoimmune disease, trauma/iritation, cancer etc. Infection is the most common cause. If the lymph glands continue to be swollen up for more than a month or so- you should see your doctor to get them checked.