Cleaning Nipple Piercings?

I’ve wanted nipples piercings forever. When I told my boyfriend he said “I’m the only person you need to impress, and I don’t care”. Then he talked me out of it because he didn’t want to “wait that long” before he could touch them. So I didn’t end up getting them done - until today. He broke up with me less than a week ago and to treat myself I went and got it done!

The piercing process really didn’t hurt, they’re just really sore right now. But my piercer told me when it came to cleaning them to do nothing. Just take a lot of hot showers. I asked my friends and they said that’s normal for nipple piercings but then I go online and shops are saying to clean them and soak them. I’m really confused and would like some help, thanks!