Good news
Although unpleasant, not dangerous.
Bad news (not too bad)
There are no bad news, really.
How does it look if you got it
Burning feeling in the mouth. Some white, yellowish stuff on the tongue and around the mouth.
What to do
See your GP or a pharmacist. Very easy to fix.
What NOT to do
Do not kiss anyone or share cups, cigarettes or bongs with others.
Things to watch out for
Nothing much, really.
One can get some other infections via kissing. The chances are low though. The best thing is to speak to a doctor or a nurse.