You can not drain it on your own, and it might need antibiotics.
Draining is complicated and has to be done understerile conditions or in the hospital.
In other words, boils that don't burst open on their own and drain are a more serious problem.
Given the location, sitting in hot water for at least 10 minutes 4 times a day, or applying a hot water compress, will get most boils to break open.
That is the extent of your home treatment.
Typically, if a boil breaks open, using a non stick gauze, keeping it clean, and maybe some polysporin is find, and they typically heal.
That is all assuming this is a boil, remember, the picture is blurred. Sometimes other lesions can mimic boils. For example, a sebaceous cyst which must be removed surgically.
Here is a good write up on boils
The other concerns are an infected boil which spreads, and causes cellulitis [skin infection] or blood infection. So if a boil does not open and drain and heal, hands on doctor attention is needed.
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