I never wrote in before, but I feel I have to in respond to this as I understand the difficulty of intermitten hemoptysis. I have had hemoptysis come and go - sometimes when I would be sick, sometimes when I would be feeling great. The solution that I have found (after dealing with this for 10 years) is Birth control PLUS vit K 10-20mg/day. I have found the VitK for to be integral, if I miss my vit K for two days I inevitably start coughing up blood. Talk to your doctor about it and give it a try for a six months. For birth control i use seasonique, 4 periods a year, and I don't find there to be any bothersome side effects.