I get so nauseous from strong and especially chemical smells. To the point of wanting to throw up...
It's difficult to make them understand.
Maybe you could remind them of how they felt when they were pregnant when smelling things so well it made them nauseous? This will obviously only work for women that have been pregnant and have been experiencing that phenomenon
it narrows down the percentage of possible understanding, but it could make some people understand what you are going through...
That's why I use so many natural products. Without perfume or just the natural sent of a light essential oil.
I like Weleda products for my skin (I choose soft smells, I love the Buckthorn body lotion), natural soap (like Aleppo soap). Clay to deep clean my skin when necessary. Pure unrefined sheabutter or argan oil for dry skin.
Shampoo is more difficult, but I choose a soft smelling brand.
And a natural soap for cleaning my house, combined with soda Crystals. A soft eco friendly dish washing soap.
M