Yes, you can cure one. But that costs money and an actual drive to want to face it. Which if it's not debilitating in the everyday life I know few people who would want to pay someone to face that fear.
If your forced into an environment it helps solve it naturally but doesn't always get rid of it. I used to have a terrifying fear of wasps and bees. I couldn't even be in the same room as one. I was in a room with a skylight out of reach where there was a tiny wasp there. I couldn't do anything. Every 5 seconds I'd hear it buzz and I'd be peeking at it in my peripherals. It's not rational but I was afraid of that mostly harmless bug, so much I couldn't even get rid of it. (Though I've had bees sting me before when I was just sitting at my desk doing nothing, what are the chances). It got better the more I had to deal with them at least but I still can't really be around them but I'll at least try to get it out a window or if I can't I squish em =/
The same as someone who's afraid of a mouse would scream "Kill it kill it" even though that mouse won't do anything to them. It's a phobia. Unless someones in an environment where they're constantly introduced to something or pay someone they can't help having that fear. It's still irrational.