Well don't know if anybody has tried this before. I was told by a friend who also tried this remedy and it worked magic wonders for him in healing wounds and staying really healthy overall. He doesn't have HS but he told me about this natural remedy that heals wounds and boosts the immune system and slows down cancer cells and much more.
Now I have tried cutting nightshades before (all of them) and they never worked for me. Also tried other diets such as gluten free/dairy free and nothing worked for me.
And I'm not saying the above doesn't work on others but it never worked for me personally.
So a little about me, I have had so much pain in both underarms due to open wounds not healing well, and recurring lumps on both arms. Last week it got to a point something had to be done about this till at least (before I could have surgery). I never took any medications for this disease recently, the last time I took anti biotics was in 2010 and after that I lived with the pain (the only good thing I gained from disease is a high pain tolerance threshold) I am really used to the pain now without the help of pain killers.
The natural remedy: 1-2 cloves of raw garlic crushed into tablet form made easy to swallow. Now drink this with 1 pint of water 1st thing in the morning (during fasted state). And after that, boil water in the pot (measuring a pint) and add 1 teaspoon of pure turmeric powder and a medium piece of ginger. Let this all boil for about 10-20 minutes and consume this RIGHT after swallowing raw garlic with water.
Do this every day non stop (for the rest of your life if you have to, as it'll increase your lifespan 
)
I tried this for a week, and let me tell you, my BOTH arms have magically healed, the remaining lump on my right arm burst itself and it started healing itself. And the wound under my left arm started to heal right away alongside. The pain is going too and I am healing up well with this. I wish I knew the combination of this remedy before.
Now I know many people have tried turmeric, garlic themselves. But the remedy above is POWERFUL when combined together and done 1st thing in the morning on a fasted state.
This worked really well for me and it's only been a week, and from the results, (I am sticking with this for the rest of my life).
Worst case scenario, if this doesn't work for HS. You will feel healthy overall, with a boosted immune system, great overall health, and healing other wounds. So people, my advice is: stick to this (even if this doesn't work for you for HS)
Enjoy