Cherry barb white head

[Lknowlton]

I need some help with a new cherry barb I got. I got her yesterday and I noticed the top of her head had almost a milky white layer on it, is this normal? Should I be worried. I'm afraid that it could be slime disease

 

[Matt68005]

Furan 2 is sold at walmart called "fungus cure" and is an antibiotic + antifungal agent that is safe for plants, catfish, and wont harm biological filtration.