A few options:
There is clothing that has repellant in it. An example is ExOfficio's Bugsaway line, which is described as "Bug blocking: BugsAway® apparel is treated with Insect Shield®, giving you invisible, odorless protection just by putting on your clothes. The treatment is bound to fabric fibers, so it stays in your clothes—not on your skin—and lasts through 70 washes. Ants, flies, chiggers, midges, and ticks don't like it, and neither do mosquitoes, which can transmit insect-borne diseases such as Zika, Chikungunya, Dengue, and West Nile viruses." There are many brands and options. A good outdoors store should have plenty, as well as online retailers.
There is Permethrin spray, which you spray onto your clothing, allow to dry, and is then good for about 6 washes. Permethrin is a man-made version of a natural insect repellent found in a type of chrysanthemum plant. It is also what ExOfficio's Bugsaway line uses as well as most other bug-away clothing that isn't relying on a purely physical barrier (like a fine mesh).
For yourself:
I can't use DEET products because they give me a rash and trigger asthma attacks. If you aren't already aware, DEET is also horrible for any type of plastic, as it melts it. This includes some types of synthetic clothing.
Consumer reports has some good information about insect repellants:
http://www.consumerreports.org/cro/insect-repellent.htm as does the US' CDC:
https://wwwnc.cdc.gov/travel/yellow...ion-against-mosquitoes-ticks-other-arthropods REI has an article on how to choose an insect repellant:
https://www.rei.com/learn/expert-advice/insect-repellents.html
For our family, we do a combination of long sleeves and long pants and picaridin-based repellants. I like the ones that are in wipes as I find them less messy. The ones I use are these, the Natrapel picaridin wipes:
http://natrapel.com/all/natrapel-8-hour-wipes.html I don't know if that brand is available where you are, but picaridin has been available in Europe for much longer than it has in the USA.
The long sleeves and long pants we wear when at WDW are also sun protective clothing with a UPF of 50+. The pants are easy, for the top I will often wear a "normal" top layered under a long sleeve coverup or jacket, and that top layer is the sun protective one [also cheaper this way, as I can reuse that top layer from day to day; good UPF clothing is NOT cheap]. We also wear a good UPF 50+ hat with at least a 3" wide brim. The advantage of this is it significantly reduces how much sunscreen I need to wear, as I only have to put it on the exposed areas. I am then not battling sunscreen + bug screen... Some UPF clothing is ALSO insect repellent clothing.
This is what the CDC page above says about sunscreen and repellant: QUOTE
"Repellents that are applied according to label instructions may be used with sunscreen with no reduction in repellent activity; however, limited data show a one-third decrease in the sun protection factor (SPF) of sunscreens when DEET-containing insect repellents are used after a sunscreen is applied. Products that combine sunscreen and repellent are not recommended, because sunscreen may need to be reapplied more often and in larger amounts than needed for the repellent component to provide protection from biting insects. In general, the recommendation is to use separate products, applying sunscreen first and then applying the repellent. Due to the decrease in SPF when using a DEET-containing insect repellent after applying sunscreen, travelers may need to reapply the sunscreen more frequently." END QUOTE
Good luck.
SW