The MP was voted to be camp leader in Sunday night's show, but viewers are continuing to vote him into the trials, with his sixth challenge Deserted Down Under set to air tonight.
Read more: All the campmates in I'm A Celebrity 2022
A first-look clip of the trial shows Hancock trapped in an underground chamber and asked to unlock a series of boxes to search for the 11 stars he needs to be able to feed everyone in camp.
Watch: Matt Hancock is confronted by another snake
But as he begins the task, jungle creatures start to join him in the chamber and a snake can be seen slithering its way under his legs.
He says: "Oh, that's a snake," and then tells hosts Ant and Dec: "I can't find anything," as he roots around through spiders, cockroaches and other insects.
In his previous trial, House of Horrors, Hancock faced his fear of snakes when one lunged at him and tried to strike him at eye level.
The former health secretary had entered a room full of aggressive snakes in search of a star, but missed out on collecting it after one tried to bite him twice.
He was also shown realising he had been stung by a scorpion in camp during Sunday's episode and complaining of feeling dizzy as Boy George laughed at him.
Viewers have expressed disbelief that Hancock has become the series' first camp leader - despite many having voted for him.
— Ed Bennett (@EddieBennett73) November 13, 2022
He went up against Mike Tindall in a challenge for the two campmates with the most public votes to be in charge and won, with Charlene White as his deputy.
As he took his throne and read out his new list of camp rules, Jill Scott mocked him by asking: "Just to bee clear, are these guidelines or rules?"
In a previous episode, the campmates had asked him whether he had received a lockdown fine, with Hancock claiming he hadn't because he had broken no laws, only his own guidelines, in having an affair with his aide.
I'm A Celebrity airs the full trial at 9pm tonight on ITV.
Watch: Matt Hancock gets stung by a scorpion on I'm A Celebrity