I dont think this is the place to ask that. I would recommend finding a health forum to ask this on and contacting your doctor. Maybe you have a slight allergy to eggs and your body reacts with a headache. But most of us are probably not drs so we cant give you a solid answer. I do hope you figure it out though!
If the boil ruptures under the skin, inflammation and infection spread quickly and new lumps form nearby. HS is a progressive disease so it is bound to get worse over time. It can be unpredictable. It is different for every person so it can be hard to predict.
