Id see your Dr if you have swollen glands, could be something you need to be treated for like strep. There are lots of over the counter medications you can use to help the cold sore. Just go to any store and ask them. :)
Actually. ..swollen glands and headache are a symptom of cold sores! Look it up! Grab yourself some Abreva! Works wonders! Try to relax and take it easy. I get cold.sores too and always have swollen. glands and a headache.