Traditional commercial freezer gel packs are very hard to find here and can be expensive. Homemade ice gel packs can be made using things you probably have in your kitchen. In fact, there are several types of freezer packs that can be made economically from common household items. Here are a few creative ideas.
You can make a liquid detergent gel pack using whatever size zipplock you would like. Fill the bag 2/3 full of liquid dish detergent, force excess air out of it and seal. Place in bigger plastic bag for precausion of spillage and place in freezer. It does get hard but after about 45 min it gets a nice moldable gel pack that stays cold for hours. Another option is to put in the freezer one hour before wrapping it in a small towel and applying where it's needed.
These are easy to make and always are "moldable". Just sew 2 wash cloths together leaving a 2" opening in the seam to fill the bag. Fill the bag 1/2 to 3/4 full with uncooked rice, wheat, feed corn, buckwheat hulls, barley, oatmeal, dried beans, or flax seed. Then stitch the bag closed. Freeze. The washcloth freezer pack can be used directly on the skin unless it feels too cold, then it can be wrapped in a towel and applied.
You can make a smaller freezer pack using an old cotton sock. The sock can be filled full of uncooked rice, wheat, feed corn, buckwheat hulls, barley, oatmeal, dried beans, or flax seed. The sock pack is knotted or sewn closed to finish. Before freezing the sock pack is wrapped in newspaper or paper towels to protect it. The sock pack can be used directly on your skin.
Tip: The washcloth freezer pack and the cotton sock pack can double as a heating pad by putting it in the microwave to heat it. A cup of water is placed in the microwave next to your sock or freezer pack for moisture during heating. Microwaving is done slowly one minute at a time and then checked. If it is not hot enough, it can be microwaved for another minute, and then checked again. This process can be slowly repeated to avoid burning the contents until the pack is hot enough. The pack should never be left unattended in the microwave or overheated.