The affected person: A 20-year-old girl in the UK
The signs: The affected person had unprotected vaginal intercourse together with her ordinary male accomplice, and shortly afterward, her vulva and vagina started itching and swelling. She developed angioedema — swelling of the tissues beneath the floor of the pores and skin — and hives appeared throughout her physique. She additionally felt faint and in need of breath.
What occurred subsequent: The girl visited a hospital and was given 10 milligrams of cetirizine, an oral antihistamine that is usually used to deal with hives and allergic reactions. She was already conscious that she was severely allergic to Brazil nuts, a sort of tree nut, but it surely was unclear what triggered her allergic response on this occasion.
She famous that her accomplice had eaten Brazil nuts about two to 3 hours earlier than that they had intercourse, however he had taken a shower and totally cleaned his tooth and fingernails previous to intercourse.
The prognosis: Because of the affected person’s medical historical past, medical doctors on the hospital suspected that vaginal intercourse launched allergy-triggering proteins from Brazil nuts into the lady’s physique by means of her accomplice’s semen.
They performed skin prick tests on the affected person utilizing completely different semen samples from her accomplice; this concerned exposing small areas of pores and skin to every pattern. For one take a look at, the medical doctors used a pattern taken when the person had not just lately eaten nuts. The opposite take a look at used a pattern collected about 2.5 hours after he ate Brazil nuts. Within the latter take a look at, a 0.28-inch-long (7 millimeters) welt appeared on the lady’s pores and skin. That steered that Brazil nut allergens had been behind her extreme postcoital allergic response.
The therapy: Inside 45 minutes after she took the cetirizine, the lady’s signs started to enhance. She felt drained the subsequent day however didn’t have any hives or really feel dizzy, nor did she have hassle respiration. The medical doctors instructed her to maintain antihistamines and an adrenaline pen (in any other case referred to as an EpiPen) shut by and steered that, sooner or later, she ought to abstain from sexual intimacy together with her accomplice if he had just lately eaten Brazil nuts.
What makes the case distinctive: There are different documented instances of people with extreme allergic reactions growing native allergic reactions after intimate contact. Nevertheless, the offender is normally the direct switch of allergens via contact or kissing. In different phrases, the allergen is current on an individual’s fingers or mouth after which will get handed over.
“To our data that is the primary case of a extreme meals allergic response transferred by regular vaginal intercourse,” medical doctors on the hospital wrote in a report.
This text is for informational functions solely and isn’t meant to supply medical recommendation.
