Phone not charging properly

Hi, so this is a weird one. My bf accidently spilled some ecig fluid which got into my charging port (last night), I let it dry naturally. I charged my phone that night and it worked fine. But today, I went to charge it and it wouldn't charge at all. I cleaned out the charging port with a cotton bud as well as the charger and it still wouldn't charge. After a few attempts of plugging in and un plugging my charger into my phone it eventually began to charge (it currently is charging). I'm hoping that it won't happen again, I'm a uni student and really can't afford a new phone nor to get my current phone fixed. Any tips?