Barbra encouraged me to get the “Philadelphia foam cervical collar” and it has worked great for me too. Thank you Barbra! It is going on 5 months now that I have been wearing a collar and this one has worked the best. You can get it on eBay very inexpensively, you can also buy the “coolmax liners” online too, which are needed for comfort especially summer. I used a soft cotton baby blanket at first and it worked fine (cut smaller) between me and the collar to absorb moisture for comfort. My suggestions for comfort are:
Make sure around your neck, you get the one that goes to your measurement size, but it will go bigger, so you have room to adjust for comfort. When you measure chin to sternum make sure you have your chin at the normal level you hold it for comfort when looking straight ahead.
Here is info for the collar in the USA. Hope this helps. Rebecca
How to measure info link
Ebay link Philedelphia collar
Coolmax liner link, make sure to order the size that fits the collar you order. I have 2 to rotate.