Several allergic reactions, skin conditions and sexually transmitted infections (STI) including genital herpes, genital warts and syphilis can result in Genital sores. A person having Genital sores experience pain, itching and burning sensation while urination. It also causes blisters. It can cause infertility and increases the risk of ectopic pregnancy in females if it is not treated on time. Antibiotics, antiviral medicines, pain relievers and anti-itch drugs can be used for treating this condition.