clean it so they aren't there anymore.
JD
ummm... that was supposed to be a little bit of humor...wow, he said he cant clean it.
You can hope it dries out (in a warm & dry place), but lenses are supposed to be sealed. If its a P&S, drying it out on your own is probably the best bet (at least at first). If it is an SLR lens, I would be looking for a factory service center to send it to to dry & re-seal it.
JD
3rd : I left It for about 5 hours in direct sunlight and it didnt help
1st : Its an old cam called Zenit 122 and yes its an SLR the lns is zenitar 50mm/F:2.0
2nd : What's a dehumidifier???
3rd : I left It for about 5 hours in direct sunlight and it didnt help