Will advil help with...?

Topical cream will be quite helpful as Karen mentioned. And yes, Advil or ibuprofen should help with the pain. You of course need to allow time for rest so that these areas can heal or else you could do some serious damage.

I would suggest stretching too. Just as we stretch before a good workout or exercise, you should stretch before you play or practice. Do arm stretches & stretch other areas in which you use often during practice or playing. Stretching is important because it prevents injuries and pain, it helps prepare your body for what you are about to do.

Also, if you can, find a way to apply support or bandage over the areas in which you bruise. Like Karen said, you can wrap some gauze around it with (medical) tape to keep it in place. Perhaps you have a supportive (thick) undergarment or vest you can wear that's not too hot? Or you could even just put a large bandage on the bruise after applying cream so that you will be protected from further bruising and soreness.

It can help, but might not get rid of all the pain..you could also try a topical cream for muscles like icy hot, bengay, etc. And where your bruise is on your tummy, try wrapping something around there under your clothes to protect it, like an ace bandage..not too tight..or a velcro tummy support..you should not keep hitting an already bruised area. You could even tape some large square guaze bandages on the area.