<s>[INST] I use nicotine patches and I have some soreness in my left armpit lymph node. I have been to doctor he said could be allergies fighting cold etc. I feel it for a few days then it s gone for months. Can using the patch cause this. The node is not swollen. Thx josh [/INST] It is very rare for nicotine patches to cause lymphnode inflamationi agree with your doctor it was just an allergic reaction </s>