I had a mirena with my first son and had no issues.  But i recently found out (the day before my bday) I have a skin disease called HS which cant be cured so im constantly on anti biotics.  I am done having childeren! I really need to know if this effects my IUD effectivness!! someone please help I have a nine month old and thats stressful enough! I need a for sure answer and proof that the facts are real! I am sorry but im very worried! I also do want to know if the IUD cause weight gain! I keep loosing my weight only to have it come right back! Im even on prescribed diet pills!! Someone please help me! thank you for taking the time to read this!