Toco bell disaster

You give someone a very tasty taco. They must make an Intelligent save or suffer the consequences.  After 10 minutes the target starts to feel a bit sick they get poisoned. After 1 hour they have to go blow up an outhouse in 5 minutes or die. The explosion is a  50 foot sphere. All in the area except for the target must make a con save or take 5d6 poison damage and 5d6 acid damage or half as much if they get a successful save. Then after 5 hour the target gets level 3 exhaustion. Every day for 7days the target must make a con save or go through the whole thing again. After the 7 days all effects are canceled.