I really appreciate that...It is very stressful...I just have to hope and pray for the best....
I don't think that your tingling and rash have anything to do with lymph nodes.
It is hard to tell what is a cancerous lymph node without biopsy but swelling and being very hard are more worrying signs. Most times enlarged nodes are due to a local infection.
Try to just wait for your biopsy results and not get too concerned about something having spread before even knowing whether you even have skin cancer or not.
I know that's easier said than done. Be kind to yourself while you wait. It is stressful.
I wanted to add...if my lymph nodes had cancer in them, wouldn't my side torso and underarm continue be a little sore or tingle or at least start to swell? Is the fact that my rash goes away quickly a good sign?