hmm...I have never thought of ulceration as a "normal" part of the hemangioma process, more of a complication. (but that is just my opinion) Three of my daughters have hemangiomas one was very minor and two more involved. My 5 year old daughter's lip hemangioma ulcerated. Her pediatrician kept telling us it was fine and not painful and to just put vaseline on it. It wasn't until we saw a Vascular Anomaly specialist that we even knew what an ulceration was or that she had one. What an eye-opener for us! I was pretty upset that her pedi wasn't that knowledgeable about her condition. By that point it had caused our daughter quite a bit of pain and she needed some treatment (steroids, bacitracin ointment and xlyocane to numb her lip so she could nurse or take a bottle)
On the other hand, my almost 2 year old daughter's wrist/hand hemangioma did not ulcerated at all. It was very large/puffy and looked like it would just burst but it started to involute when she was about 10 months old and didn't need any treatment.
I think the risk of ulceration often has to do with the location of the hemangioma sometimes. I'm not sure how the forehead usually does in terms of ulcerations, healing, scarring, etc. So continue to listen to your instincts and follow up if you don't think it's getting better.
I'm pretty sure there's a resource on this website that has to do with ulcerations, care, etc. Maybe there will be some info on what to watch for. I just got a little nervous when you said the doctor said it's just the normal process of ulceration before it involutes, because not all hemangiomas follow that process. Don't wan't to scare you though! Hopefully it will not be a big deal and it will just heal up nicely on its own!
By the way, I have twins too (mine are almost 2) They both have hemangiomas too. Crazy huh? How is life with twins for you? Mine is pretty wild! They are a lot of fun (and a lot of work!)
Keep us posted! I hope you are doing well.