I don't usually get eczema far into my hair, and I rarely get it anywhere now that I am taking fish oil and borage seed oil. I have asthma and allergies, and everybody in my life it itchy and rashy
. My twin used to get severe eczema on her hands at her place of work, but now she has a different job, allergy shots, and is doing much better.
My husband has some skin disorder, his dermatologist says it's seb. dermatitis but it acts more like eczema on his scalp (IMO, they're the same thing at some level).
He broke out in response to ketoconazole shampoo, and also to the prescription steroid (not the same one you have).
Currently he is responding pretty well (scalp looking better in color, skin looks smoother and shiny or rather not matte or "rough," far less itch) in response to a shampoo to which I added 5% niacinamide, 3% panthenol (I get them from a cosmetics-making supply company online). It's a shampoo very much like California Baby Super Sensitive.
I also use a lotion on his scalp which is a lot like the CeraVe nighttime serum. These two things are loading on the humectants and emollients/lipids and help improve skin's barrier/collagen and ceramide production.
Selsun and hydrocortisone and such used to work better for him, but now they're not working.
As for scrubbing, I cannot seem to get him to stop scrubbing his scalp like a dirty pair of sneakers - and yet when he has lost hair or had thinning patches from scalp problems, it has returned despite the scrubbing.
My atopic dog has had many massive coat-shedding episodes, and the hair always returns with the help of massage and skin medication and antihistamines. We actually caught it before he got bald spots, though.
I wouldn't worry much about scrubbing. It's necessary. Atopic skin needs really gentle exfoliation. Have you tried a shampoo brush with the soft rubbery "bristles?" Heaven! And only $2.
If you have allergies it will help a lot to get those under control. An allergy test alone can help you figure out how to control your exposure to allergens. Antihistamines can help. Allergy shots work well for people who are young or have just a few allergies. For those of us over 30 and with a bucketload of allergies, they're not as effective.
And as noted, people with eczema often improve with fish oil (or omega 3s from walnuts, omega 3 eggs, organic milk) and evening primrose oil or borage seed oil supplements because they have anti-inflammatory effects. For example, my dog's Rx for fish oil capsules with his atopic dermatitis is 1200 mg EPA and 600 mg DHA at 75 lbs. Combined with antihistamines and allergy shots - it's working well. Not perfectly, but much better.
For my itchy scalp, sometimes a cowash is just what it needs to soothe the itch, even in summer. My allergic mother is the same.
One last thing I hate to admit because I love very warm showers... cooler water truly is much better. Shudder.