Nosebleed infection - advice

So I have this nosebleed infection where every few weeks I tend to get nosebleeds. More than one in the same day, usually. Just two days ago on Thursday I got a really bad nosebleed which lasted just short of half an hour, and it really hurt just like all of my nosebleeds do. I actually do feel pain from them.

I've had this infection for a few years now, and I've been to see a doctor... more than once. The result is just being prescribed cream and medication tablets for the infection. On one occasion I have been referred to A&E, in which they just prescribed me cream and medication tablets as well.

If these nosebleeds carry on, which they will do, what should I do? The cream and the tablets don't seem to be helping. The nosebleeds just continue and it sucks because they can just happen at any random moment. On a bus, in the car, in college, anywhere, where I'm not prepared for them (I've started carrying tissues with me now but they're so big even like 5 packets of tissues isn't enough). It's best when they happen at home, although I'd rather they didn't happen at all.

Any help for this would be much appreciated, thanks.