Prized Fremantle Dockers recruit Bradley Hill has revealed he had almost been forced to pull out of last week's practice match against West Coast after suffering an allergic reaction to an ice bath.

Hill, who has a history of reacting to the cold, swelled up and became red and itchy after forgetting to take an allergy tablet just before stepping into the bath.

The 23-year-old also suffered the reaction several times during his stint at Hawthorn, so he wasn't overly worried when it happened again.

"I normally take a Telfast tablet, which is like an antihistamine, because I just have a bit of a reaction to cold temperatures," Hill told reporters on Tuesday.