Your mother probably told you that lying is wrong. Mine certainly did. Sometimes, though, you may actually have to lie in order to be productive. You don´t have to be too worried about this weighing on your conscience, though. The only person you may have to lie to is yourself.
Here´s the thing — I know that you have at least one task right now that you need to do, but that you are putting every effort into ignoring. Whatever that task is, you have built up such a degree of dread and hatred for the activity that just the thought of doing it is enough to make you feel sick. Somewhere deep inside yourself you know that it would be better in the long run to get it out of the way, but getting started on it seems like an insurmountable barrier. You can feel good, at least, that you aren´t alone in the way you feel.
Here´s where the lying comes in. You need to get that task out of the way, and the only way that you can do that is to start it. Tell yourself that you are just going to spend five minutes on the task today, and when that five minutes is up you can leave it until the next day. You can promise yourself that, but it´s a promise you probably won´t keep. Instead, what will probably happen is that you will get going, discover that it isn´t as bad as it seemed in your mind, and you´ll finish it off.
That little lie that you told yourself — it´ll just be five minutes — may be enough to get you started on completing the task. Once you get started and the momentum gets rolling, the task will get completed. That´s certainly a forgivable lie. A good one, even.