My brother was a magnet to mozzies - i think my mum use to put calamine lotion on them.

I was just googling cures and found a few other natural remedies:-

* Take a knob off the garlic and cut in half. Rub the garlic onto the mosquito bites
* Use any of the following to help the itch of a mosquito bite. Aloe vera, neem fruit juice, lime juice or lemon juice. Use the flesh of the aloe vera, squeeze the juice from the lime, lemon or neem fruit and simply apply to the bites
* Mix enough baking soda with plane water to make a paste consistency. Rub the paste over the mosquito bites
* When you eat your banana's keep the skins in the freezer. Whenever you or someone you know gets mozzie bites just rub the bits with the inside of the banana peel

I've also heard they are less likely to bite those with more vitamin B in there system - I know we use to take vitamin B tablets if we went somewhere on holidays with mozzies - like camping etc

Hope this helps and you find some relief for her soon.