|A donation to the forum removes ads for you, and supports Ivar in his work running it|
If no ice for sale in the freezer a bag of frozen peas will do.Try a supermarket. Some have bags of ice in the freezer.
And, finally, on any petrol station they should sell whole bags of it!
You can buy a gel pack that you can keep in a freezer for one or two hours and reuse time after time (however, AVOID direct contact with the skin, it is a good idea to wrap the frozen componentes in some cloth)
I bought frozen peas from market when tore my ligaments 4 weeks ago. 20 minutes on foot then back in freezer. After 2 weeks of daily treatment several times a day I then devoured the peas! Better than melted ice.