Posted: 23/07/2015 at 12:19
The plant looks like Jasmine. Jasminum officinale
Its not a usual cause of allergic reactions, indeed the oil is often used in perfume and aromatherapy.
That said, it is possible to become allergic to almost anything.
Do you have any cow parsley type plants in the garden that you may have brushed against, or any euphorbias?