Exposure therapy is highly effective, though it's the most difficult thing in the universe! This summer, I had a bad spell that lasted over a month, and I found myself unable to leave the house. It took me weeks to get comfortable walking to the front door without going into full blown panic mode, but I eventually managed to walk to the nearby car park, and am now more or less back to being back to normal. I can get to several places, workplace included, feeling moderately ok.