Can wait if symptoms are not progressive
Thanks for the query.
Foreign body impaction
in throat can occur and can produce such symptoms of something stuck in throat but many a times this feeling is because of the injury
caused by the passage of that foreign body rather than the actual impaction.
Use of proton pump
inhibitors with antacid
preparations with local anaesthetics help in relieving symptoms.
But if the symptoms persist for long or there is much difficulty in swallowing, an Xray of the neck should be done to have an idea about the foreign body. In your case a shell will be radio-opaque and can be seen on Xray and if it is there, endoscopic removal is recommended.
You can wait for 24 hours if there is not much pain and dysphagia is not progressive. In case pain appears in throat, neck or between the shoulder blades, do visit an ENT.
Feel free to ask another query.