Hi some advice please. I have a cold which I've had for 10 days now. I have lupus. It started with sore throat and has now turned into sneezing phlegm and headache. I had clinic last week where my dip stick was 3 +. The hospital rang me and I had to go bk to clincic the following week to repeat . This time it showed just traces of protein. I know my immune system is low as I've not had a cold for years that lasts this long. Shd I visit the docs on Monday incase there is a secondary infection?