Any docs in the house?

Don't want to waste the doctor's time just yet, buuuut...

Just over a week ago I finished a week-long course of antibiotics for a gum/wisdom tooth problem - nothing major. Since coming off them, I notice my tongue has got that horrid white'ish furry covering to it, which although not too harrowing, doesn't look that great and leaves a bit of a metallic taste in the mouth.

Is this something that crops up as a result of antibiotics?

(And yes, I've already checked Google, but it says I have bad AIDS)

Thanks for all the replies. A trip to Boots looks in order; I was hoping scalding tea and a Mach 3 was going to be the cure, but I guess not.