Kill the <a href="/mobs/details.html?id=218">nucklavee</a>. Get scales corpse. Go to <a href="/mobs/details.html?id=334">Erin</a>, give scales erin. He'll give you a smelly herb. Get any piece of loot from Midir's <a href="/quests/details.html?id=73">freedom quest</a> (excluding the crystal earring from the chest), you don't have to do the quest yourself.
give loot midir
ask midir what is yet to come
give herb midir
You will no longer lose hp when entering sl2.