Suggest Remedy For Bumps On Labia Area

After sex, I get a large soft bump around the outer labia area. I have seen my GYN 3 times, she insists it is a "plugged duct from the skeene gland" and has since drained it twice. The fluid has all been a clear "lubrication" type fluid with no sign of infection. However, once I was healed and started having sex again, it returned.