Show a bar in PitBull4 on units afflicted with Incinerate Flesh that shows the amount of healing done towards removing the debuff. Pending heals, if LibHealComm-4.0 is available, are shown in yellow (or some other color of your choice) after the already absorbed heals. A spark moves along the bar to indicate when the Incinerate Flesh will fade (and thus cause the Burning Inferno). You can easily see if you have enough healing to remove the debuff before it will fade by making sure the absorbed and pending healing stay ahead of the spark.
You can get text with LuaTexts with a text like so (no events checked):
local Jaraxxus = PitBull4.Jaraxxus if not Jaraxxus then return end local required_healing = Jaraxxus:GetRequiredHealing(unit) if required_healing then UpdateIn(0.1) local absorbed = Jaraxxus:GetAbsorbed(unit) local pending = Jaraxxus:GetPending(unit) return "%s (%d) / %d",absorbed,absorbed+pending,required_healing end