There are chances of side effects of Boswellia but if you wanted to cure asthma and any disease which are to be cured without any medication then let me know so i can guide you
I think you may suffer from cold or sinus or migraine or any anything related with it
I think some times you may suffer from headache and pain to neck or any other parts of your body
I think your mouth may be opened at night time and some times you can not sleep properly
If you have any other disease such as constipation or any other disease then let me know so i can guide you
regards
Dr Lodha