hello and welcome to HCM,
Any lump in the ear should be investigated and only then a proper diagnosis can be made and treatment initiated.
If the lump is painful you may try a course of antibiotic and anti inflammatory medication for a few days and see if that improves the swelling
You may get evaluated with an ENT consultant who may do a proper examination and may request for a test called the FNAC to get a diagnosis
If these do not help you may perform a biopsy
of the lesion to get a permanent cure
meanwhile do not press or tease the lump
Dr Sriram Nathan