What is the best way to clean the bottom of my tongue piercing?

I got my tongue pierced last Thursday and surpisingly the pain has been very minimal. I have been very good about taking care of it. I brush 2 times per day, I use dilluted mouthwash every time I eat or drink, and in the morning after i brush I use gly-oxide and also at night, and before I mouthwash at those times, I rinse with salt water. Now this is the 5th day and the bottom of the barbell (under my tongue) is starting to sting a little. Is this normal?