Thanks for writing in to Healthcare Magic!
Cortisones are hardly absorbale when applied on normal skin. But in your case when applying on highly vascular eczema
skin in presence of thinning there are fair chances that you will get systemic effects due to increases absorption and it may lead to pituitary adrenal suppression.
Skin thinning is a well known complication of the topical steroids
You should get an early morning fasting state serum sample of Corticosteroid levels to define the condition.
If you have any further query please let me know I would try to answer it for you.
Wish you a great health!