“We may not have enough medical knowledge to correctly deal with someone of your… ‘unique’ physiology, but I do believe from what I know these will help you with your migraines and other related issues or at least soothe them… maybe, probably. It’s a try anyway, consider it a thank you for the help you’re doing us right now”

Perceptor gives Galvatron a bottle of medication! (OuO)/
It's to help Galvatron with his continual migraines which are due to the plasma damage in his head/brain!

Bonus facties:
Galvatron is not wearing that bracelet willingly >;3C
And as for the 'help' Galvatron is giving them, well, being a babysitter ain't so bad. The Autobot kids promise to behave.