Aftercare advice

Becca • I`m 19 and ttc with my fiancé of 4 years :) just want our own little family
Hello I got my tragus done yesterday and my piercer didn't give me anything on aftercare as my sister was talking to him about gettin hers done and I just forgot to ask, but today it's sore but it's because I slept on it but what should I use 2 clean the piercing? I read saline solution but isn't it for contacts? Or will sea salt and warm water be okay?Haha my piercing shop isn't open till Tuesday now so just wondering?