Welcome to HCM
I went through your history & it suggests that you are suffering from Pericoronitis
i.e. inflammation of pericoronal tissue before eruption of third molar.Along with that you are experiencing some pressure on inferior alveolar nerve
of same side. Pericoronitis occurs due to food lodgement & bacterial accumulation in that area.Its Symptoms are:-
-difficulty in mouth opening
Get an IOPAR done & consult your dentist
.If flap is interrupting in its path then go for flap removal i.e. operculumectomy. Otherwise if sufficient space is not available then go for extraction.
For temporarily relief do warm saline rinses 3-4 times a day.
Start with Tab Amclaid-625 twice a day along with Tab Zerodol -SP thrice a day for 5 days.In Case of gastric problem take rabeprazole-40mg once daily.
gargles twice a day.