Help!!! - My macbook air has some substance on the edge

[elnegronica]

My macbook air has some substance on the edge of it and it doesn't want to come off. I thought it was some type of melted candy on it so I tasted it and it had a sour taste to it. I don't know what it is! When I try to clean it off it disappears but when it dries up it comes back. Oh and it's the newer version of the macbook air. I got it on September of 2014.

 

[Queen6]

If you have cleaned it off thoroughly and it returns, I recommend you have Apple look at is may be related to the battery.

Q-6

 

[Newtons Apple]

How about an image?

I would not taste it again as it could be from the battery.

 

[Gav2k]

As above a picture would help massively and don't taste things that look to be leaking from electronics.