Okay, so I was prescribed antibiotics for my acne which gave me a bad allergic reaction. Really bad hives across my face and unbearably painfully itchy tingling hands and feet and because of that the doctor has prescribed me the pill (Estelle 35) now that the reaction has worn off for the most part. 

I know everybody reacts differently to the pill but I just wanted some opinions from others who have used it about whether or not it is worth starting yet. Normally I would just start it and see how it goes BUT my thing is I go on holiday in a month and I've just spent the last 3 months working really hard to lose 7kg and I'm scared I'm going to put it all back on! The doctor actually told me I might gain weight and then said I could do with losing a few more kgs, so I'm obviously a little bit confused about that. Was hoping to lose a bit more before I go away but I'm worried the pill will make that harder. As I said I'd normally just bite the bullet but in this case I don't know whether it's worth waiting until after my holiday when I wouldn't really mind if I had to put on a bit of weight as a necessary evil. I really want to clear up my acne but I'm also scared that all my hard work will go down the drain if I start the pill now.
Also scared about getting breakthrough bleeding during my holiday as it will be my first month taking it.

Any thoughts from those who have used the pill for acne would be greatly appreciated!