Itch Soother

From the website:

Itch Soother — Don’t Let Irritating Mosquito Bites Ruin Your Fun

This remarkable Itch Soother device uses heat to reduce the itching and swelling that come with mosquito bites.

Just press the metal edge against the bite and push the button on the other end.

As the unit heats up, you get almost instant relief.

Safe for children and those with sensitive skin.

Perfect for pocket, pack, or purse.

Uses 2 AAA batteries.

4.5" long.

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We are reminded of one of the great song lyrics of all time, to wit: "You're gonna need an ocean/of calamine lotion."

$17.98 (batteries not included).