Mosquito bite prevention Italy May

found that toast (and Marmite)... by mouth..... not for application, was quite effective in several countries of Europe and Asia. Hormonal females are supposed to be often afflicted so better to keep the skin covered if the term fits you
I was advised in Singapore years ago, to buy( and apply to exposed skin) a product called Peaceful Sleep but never managed to find it

I use highly strength deet based products, plus Boots after sun with repellent in the evening.

We often used to go to Italy generally end of May when our children were young. I always got bitten badly. My husband not so much.
The mossies were outdoors but also used to be indoors on the bedroom walls and we woukd squash as many as we could. They left a nasty mess on the walls but hoped it would wipe off.
We bought things to plug in which were supposed to discourage them. Not sure it did.

Afterbite pen Maybee? I carry one at all times to dab on any bites. Preventatively I use the highest DEET I can find, the Avon SSS did nothing for me.

Evryone has their own recommendations, and you can find articles online to back most of them up! For instance, I saw NotSpaghetti’s article saying the Skin So Soft worked, but Which’s tests said it didn’t! It does seem that the more Deet is in a repellant, the more protection you get, but I guess you just keep trying until you find something that works for you.
For Greek holidays, I always find Mosquito Milk from Amazon or Chemist Direct works really well, but I’ve met people in Greece who start with B12, garlic capsules, and anti histamine tablets two weeks before they go, then lemon shower gel, Skin So Soft, and Boots After Sun with repellant! Who knows what ( if anything) is working. Of course, maybe some people just don’t react to the bites. Trial and error, I suspect.