 [ Symptoms ] can adult sunscreen lotion cause a rash on children [ Disease ] thank you for your answers i know i had an ultra sound done last year and it showed a couple cysts but they said they were big enough to cause any problems so maybe thats what it is and a new one has shown up or an existing one has gotten worse maybe yea ovulation could be a possibility too i never thought about that but it would be hard to track my cycle to see because i have the mirena sometimes i have a menstrual cycle and sometimes i go without one for months