How can I leave the house?

I have been diagosed with and suffered from OCD for a number of years. I've tried numerous medications and seen a psychologist and thought I was over the worst of it but now I find I have slipped back into my old ways. I find it near impossible to leave the house when I am the last one out. Its almost like I cant handle the responsibility should something go wrong. I check things obsessively then have to go back and do it over and over again "just in case" I missed something. I worry that my dog is the alone in the house incase it burns down or the garden gate is left open and he might escape. Overall its extremely stressful and can take me between 30-45mins to leave the house which results in me being stressed and late for work. Does anyone have any hints or tips to overcome this? I've tried giving myself time limits but my anxiety usually wins out. Please help me, its ruining my life!

IM not much with dealing with medicene side effects so I dont take any now...but i too have OCD and once had Agoraphobia...anyway I got on Imipramine and it helped me tremendously with agoraphobia and now i can go anywhere where once i couldnt get out the front door...i thought possibly this may interest you...i recommend it to help you get over the nervousness...and for the OCD Anafranil helps very much, but i will warn you it some such shitty side effects....mostly loss of sex drive, sweating increase, weight gain...but these were mine, it may not happen to you...

best reguards,
Devin