oooppps! my first message is gone!! (so here's my second attempt) You may try Neozep tablet. I usually take 2tabs for the first intake, then, 1 tab every after 6 hours. The prime suspect could be the yellow bells and mango trees, the Gardenia is also in full bloom just a meter away where you sat. Another suspect is the Frangipani(Plumeria) infused oil that i lit for an hour.
Wyre, it's the Mulberry tree!! just 3 meters away where the dinner was... You can expect more plant pollen and seasonal allergies if you put any of these plants in your yard. Flowers/herbs Amaranth (pigweed), chamomile, chrysanthemums, daisies, goldenrod, ordinary sunflowers. Shrubs/vines Cypress, jasmine vine, juniper, wisteria. Trees Alder, ash (male), aspen (male), beech, birch, box elder (male), cedar (male), cottonwood (male), elm, hickory, red and silver maples (male), mulberry (male), oak, olive, palm (male), pecan, pine, poplar (male), sycamore, walnut, willow (male). Grasses Bermuda, fescue, Johnson, June, orchard, perennial rye, redtop, salt grass, sweet vernal, timothy. Weeds Cocklebur, ragweed, Russian thistle, sagebrush.
Definitely none of those in my yard. Sinuses are just now starting to recover. I didn't think it was Mango because we have a mango farm next door to us and I've never had problems with it before.