Hi..
Welcome to HEALTHCARE MAGIC..
I have gone through your query and can understand your concerns..
As per your complain it seems that popping of the ear followed by
severe pain that has occurred during a vigorous bout of
vomiting can be most probably due to perforation of the eardrum during sudden change in pressure around the eardrum during vomiting..
It can lead to severe pain and discomfort and there might even be some loss of hearing..
I would suggest you to consult an ENT expert and get evaluated and a thorough clinical evaluation and investigations like x ray, MRI scan, otoscopy etc can help in diagnosis and treatment can be done accordingly..
In case of perforation in eardrum you can be advised a course of antibiotics, anti inflammatory painkiller like
Ibuprofen,
Naproxen etc along with nasal decongestants..
As of now if pain is severe and you are not able to sleep due to pain you should consult an Emergency room and they can advise you an injection of painkiller as well as give you
analgesic supposotries to relieve pain..
Hope this information helps..
Thanks and regards.
Dr.Honey Nandwani Arora.