Hi Fuzzy,

One thing you can do is use visualization to help you cope through the bad memories until you can see your therapist if you have one or until you feel stronger and have grounding techniques gathered. If you're not in a space where you can handle the memory or a nightmare, you can write it down (or a date and reminder--whatever works to help you remember later) on an index card or piece of folded paper and put it in your own personal box.

One time when i went to the hospital we each took a plain white cigar-style/school desk box and decorated it however we wanted. Then we labeled it bad dreams. You could make one and label it bad dreams, bad memories, bad stuff...whatever you like. You could color it with crayons or markers, paint it, or make a collage on it. You could even leave it plain. Later you can take the box to therapy.

For me it's better to work through things as they come up as much as possible and not try to push them away too far or too long cuz they just keep coming back again and again. Working through them can help diffuse them little by little. At the same time, sometimes instinct kicks in and we just can't do it right that moment. Maybe the box could help contain things short term. Just one option.