Boots the chemist sell a great kit, designed to vacuum suck out bites and stings, including snakes and scorpions called Aspivenin, which we use on mosquito bites - no more itch! This costs about £14.00. However Poundland shops sell a similar product for £1 which is as good. Get friends or visitors to pick one or more up for you from UK, worth having several around and a must for those renting out villas. When we have used this on people badly affected by insect bites they have instantly arranged to buy them for themselves.