<Disclaimer: This post is a “parrot”dy and does not recommend giving pain reliever for humans to birds. We recommend you contact your veterinarian if your bird appears to be in pain.>
Cockatiels love to play and investigate, but it takes all a ‘Tiel can give to keep up with a Lovebird. Lovebirds also love to play and play hard. So, after a day of play, this ‘Tiel goes for real pain relief:
But just make sure you are there to help if there is a bird-proof cap.