Hi eastie
Antihistamines will not stop you getting bitten, just reduce the reaction. Jen now uses an antihistamine cream if she does get bitten but thank the Lord our protection measures keep her relatively bite free. I have never been bitten, but my time in Arillas has been deeply affected by the way Jen is.
We used to think she wouldn't get bitten until early evening when we sat eating gorgeous Greek food, but her 6 bites last month were morning, afternoon and night. Use the plugins all night (you can buy them locally for 7 euros) and take Boots Jungle Strength spray and any bare skin needs to be sprayed by 7pm. If you can bear it, wear popsox and trousers out in the evening. And wearing the lovely feminine clothes spray everything that is on show.
Beware - they never give up.
Phil