Rash facts. 1  Rash is not a specific diagnosis. Instead it refers to any sort of skin inflammation and/or discoloration that distorts the skin's normal appearance. 2  Common rashes include eczema, poison ivy, hives, and athlete's foot. 3  Infections that cause rashes may be fungal, bacterial, parasitic, or viral.
Many of us use the term Styrofoam as a reference to most plastic foam packaging. We include foam drinking cups, packaging peanuts and the white material that our appliances, toys and so many other items are packaged in. In fact, most of this is not Styrofoam.
If price is your main concern, plastic is the less costly option. It is lighter, which makes manufacturing and shipping less expensive. Styrofoam is a little more expensive to purchase, but it does double as a hot and cold drink cup, so it may be more cost-effective in the end, depending on your intended use.