According to a recent study semen allergy can make sex undesirable for women. Semen allergy is estimated to affect about 20,000-40,000 women in the US, who may experience symptoms like swelling, burning and hives.
Jonathan Bernstein, MD, an allergy and immunology expert at University of Cincinnati told ABC News that semen allergies also known as Seminal plasma hypersensitivity are "not common like asthma, but more than people realize, the New York Daily News reported."
This type of allergy is usually treated by identifying which of the proteins in the man's semen are causing the woman's allergic reaction, then using a desensitization process to build up tolerance.
According to seminalplasmaallergy.org, a site that is maintained by Bernstein, people suffering from seminal plasma hypersensitivity may experience any or all of the following symptoms up to 60 minutes after intercourse: hives, soft tissue swelling, chest tightness, shortness of breath, wheezing, diarrhea, dizziness or loss of consciousness.
More common causes of skin and tissue irritation from sex include sensitivity to latex in condoms or the chemicals used in spermicides, lubricants or other personal care products.