Depending on location and cause it may be possible to continue riding, I had a problem that had an offline saddle as the root cause, though other factors contributed. From painful experience I can vouch for the fact that 'usual' levels of hygiene will not help shift it and allow you to continue to ride. Though when the main lump reaches egg sized proportions and then bursts, there is a significant sense of relief associated with the release of pressure
Step 1 - saddle set up correctly, height, fore and aft position and tilt - plus make sure the saddle isn't too wide/narrow for your bum.
Step 2 - make yourself so clean that someone could eat their dinner off of down there
- I commuted a 40 mile round trip daily and resorted to - get up in morning and wash crotch area thoroughly, put on clean bib shorts with plenty of cream, cycle to work, shower and apply savlon cream after shower, journey home again use of wet wipes then chamois cream and another clean pair of bib shorts, shower on arriving home and use cortisone cream after. Clean boxers during day and again in evening.
What you can do, cycling wise, while it's healing, will also depend on personal tolerance thresholds. The above worked for me but the first week of treatment saw no shortage of blood and pus, on the bib shorts chamois, each day. There's also the fact that the undercarriage does toughen up over time, this was early on in my return to cycling.