Hello, if swallowing is an issue, then I would recommend that you use a vaporizer. The desktop units such as The Volcano or Da Buddah brands are two examples of quality units. Just remember to thoroughly prepare the cannabis by using a marijuana grinder before placing the cannabis in the chamber. You should also look up a few video clips explaining how to use a vaporizer.
Here are a few pointers
https://capitalcitycare.com/use-vaporizer-cannabis-flowers/
drkim