What are a side affect of nose cauterization?

When you get your nose cauterized it does not hurt because the doctor puts a numbing thing in your nose on a cotton ball, After its done it took me about an hour to get my feeling back (the numbing stuff ran down my throat so it numbed my throat) and then I got a runny nose, then a blocked nose, runny nose, blocked nose, it keeps changing. People say " don't blow your nose for a week after it", but I got it done yesterday and I'm blowing my nose hard and nothing bad happened.