My son had it quite bad when he was younger he would look like he's blushing people would comment how gorgeous he looked lool. Ok it's not funny I know especially when it's weeping or releasing blood.
apply the cream 3-4 times a day or more
Keep the baby cool heat exacerbates it
Cotton is more comfy on the baby's skin especially if it's sore. Leave off pretty silks, brocades or any stiff materials I.e denim.
Only use steroid cream sparingly when it looks like the baby's skin will crack and bleed.
Steroid creams thin the skin so use as last resort.
Daily bathing helps the emollients to absorb better. Quick swish is all that's needed.
don't use soap or baby bubble baths top to toe washes it will increase the problem. Plain water is fine for a baby or oilatum bath additive get it from the gp . I used that for a few years.
In my experience ointments (greasy like clarified butter) are better than creams (I.e lotion watery white consistency) when it comes to steroid products.
Same with emollient creams for daily use the ointment types seem to do better for me, I guess it's because they create more of a greasy barrier.
The worst cream I got was aqueous water lotion felt dry after a few seconds didn't work. May for you GPS always give that first because it's the cheapest.
Then hydrous cream that worked for my son for a year then started failing.
Finally hydromol ointment looks like clarified butter. It's more expensive I wonder if that's why it's better? Who knows it works. I've used it on 3 of my kids works like a charm I don't need steroid creams since I apply them very frequently.
I used Hydrocortisone ointment I can't remember which brand, I know one brand works better than another don't know why but gp said there must be a difference in ingredients.
I would say try and get the hydromol ointment not cream. It's solid form. It will work I'm sure, and apply religiously. And continue with different steroid creams if the one you have is useless.
I'm afraid there will be a lot of trips to the gp I remember it all too well.
Good luck I'm sure it will settle down, it does as they get older.