Little Itsy was told she wasn't going to live, but now the eight-week-old pup is being nursed back to health by Blue Cross animal hospital.
The chihuahua crossbreed came from an unwanted litter and had to battle a condition which affects her brain.
The team at Blue Cross foster home have now restored her to health and she is on the lookout for a new home.
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Sunny this evening, then dry overnight. There is the risk of thundery showers for Kent tomorrow morning, then sunny spells by the afternoon
Sunshine to end the day then dry tonight. Tomorrow will be mostly dry and feeling fresher with the risk of a heavy shower in the afternoon
The video, obtained by ITV News, shows scores of migrants desperately trying to board lorries in a restricted area within the tunnel.