I would advise not to self diagnose even though the symptoms might sound familiar to you.
Send a picture of the problem area first , and if that is enough I would be able to give you a diagnosis and treatment accordingly , or advise for a video consultation/ in person consultation .
At the same time , warm compresses is something that would do you no harm .u can do it 15 minutes at a go 2-3 times a day.
Is it associated with fever ? How severe is the pain ? Is this the first time you are having this or is it recurrent?
All these are important questions that need to be known before prescribing anything.
Thank you
Next Steps
send photo and a brief history