Oh Danni- I feel for you. I know all about windy/colicky pain - Logan barely slept at all in the first few mths due to pain.
I tried :
Infants friend - helped a little
Mylanta - helped a bit
Massage - worked quite well. Try the circular strokes and also strokes with palms flat on his belly and moving downwards one hand after the other - 6 strokes then legs bent up then repeat etc
HAB - worked wonders. certainly THE BEST tool to ease a screaming child. I know you said you can't get it on by yourself but maybe just ry holding him tight against you and walk around for awhile until he is calm and /or asleep

Hammock/bouncer or holding him in arms whilst bouncing on a fit ball - also helps to calm bubs

Dummy or boob - defnite soother for winds and other pains

Sorry can't think of the rest right now but good luck and let us know how you are doing