BB, DS was very colicky. He used to scream for hours every evening, and it was horrible. We used Infacol, which did help, but I know others have found it useless. The good thing is, uis that for most babies, colic seems to clear up around 12 weeks, so it won;t last forever.
We used to find that the "tiger in the tree" hold worked for us. DS would fall asleep like that. We also used to put him on a playmat on his tummy during the day a lot, and that helped too. Moving his legs around as if he were cycling was also great for him as was gently massaging his tummy in a circle. I also used to find winding him regularly during feeds would help (say every 10 mins) Can make feeding a little longer, but I used to find it helped. I also used to prop his moses basket up at night too, and this helped him sleep better.
I really feel for you, as having a colicky baby is so hard, as it can seem like nothing you do helps. Just keep hold of the fact that it won;t last, and before you know it, your DD will be sleeping through, and it will all be a distant memory. Make sure as well that you get some time away at the weekends when your husband is home, even if it's just half an hour for a nap or a nice bath. I remember when DS was that age feeling like I never evne had a minute to sit down and scratch my arse, because I was constantly feeding/winding/comforting. Having a little bit of Me Time (I hate that phrase, but can't think of anything bettre!!) would really help me to cope.