Welcome in H.C.M.
I have gone through your query regarding ear ache for last 7 days. Though you are also having sore throat ,running nose and headache.
According to your symptoms it appears as you are suffering from acute upper respiratory tract
infection with acute otitis media
. This all happens because of your untreated cold and sore throat. Your throat infection
and runninig nose had blocked the opening of eustachian tube (tubular connection between ear and throat), this eustachian tube dysfunction
had developed negative pressure in your ear which you felt as bloked ear with hearing loss, further this lead to collection of fluid in your middle ear and now you are having severe pain in your ear.
In such situation putting vinegar in ear will harm you so please don't put any thing in your ear and take-
1- Tab Paracetamol.
2- Steam inhalation.
3- Anti inflammatory.
4- Anti histaminic & decongestant.
5- Antibiotic (preferably broad spectrum).
Probably above will help you otherwise consultation with ENT specialist
will become necessary for further treatment.