Sounds normal to me.If you go back and read some of the posts, everyone has had the 'reocccurring' outbreak. I had it when I was a cook and it would jump all over the place when working in a hot kitchen making pizzas.
Your body is still trying to fight it or you are still coming in contact with the oil somewhere. You garden- so how about your shoes, shoelaces, tools, shed door handle, hoes, garden hose knob, garden hose, trach can lids, handle on your lawnmower, etc... Get the picture? The oil can be somewhere that you haven't thought of.
Check your shower area too... Had it on my razor once.