If you have flashbacks, and you are reading this, you know exactly what I mean. I hope you have people in your life who understand this, too. Not everyone does. While every therapist should have a clear idea of what a flashback is, and how you feel when you experience one, some therapists are unfamiliar with PTSD.
Dry ice can be bought in local grocery stores. However you can also produce your own dry ice through a portable dry ice maker. Certain portable dry ice makers are capable of p â¦ roducing 1-lb blocks of dry ice within a minute.owever you can also produce your own dry ice through a portable dry ice maker. Certain portable dry ice makers are capable of p â¦ roducing 1-lb blocks of dry ice within a minute.
1 When using dry ice for cooling foods, place the dry ice in the BOTTOM of a cooler, refrigerator, or insulated container. 2  Do not allow foods to have direct contact with the dry ice. 3  Place an insulating material â such as cardboard â between the dry ice and food. 4  Do not put dry ice in your drink. When using dry ice to keep foods frozen, place the dry ice ON TOP of the items you want frozen. 2  A small block of dry ice (5 to 7 pounds) wrapped in an insulating container has an effective cooling time of 18 to 24 hours.