Shirley.
He might have made it sound worse than it is
If he is anything like my lad then the mossie bite will be like mount vesuvius on his face.
Seriously, my lad went to work in Sidari in Corfu for 2 summers from May until October and he was covered the first year in them.
He scratched and scratched until he made himself bleed and the bites were still oozing serum out weeks after he came home.
The second summer he drank beer instead of "shorts" for the yeast content and drank that much that he came home with a yeast infection,

that produced white patches on his torso, made to look worse with the tan he had acquired on the rest of his body....plus white dots all over him from the previous years bites that just wouldn`t tan over, where the female mozzie had sunk her fangs in him...plus a raging chest infection from smoking too much.
I produced the lavender oil and he told me "no way mother", "I`m not using that" but when the itching was driving him around the bend then he used it when I wasn`t looking and my house smelt lovely of lavender.....
He wouldn`t admit it being the vain creature that he is, but it worked for him on the bites.
SanJi x