Many eczema sufferers also have allergies (environmental, seasonal, etc.). So, part of the treatment for atopic dermatitis also includes an allergy or antihistamine (OTC or prescription) medication.1
However, not all allergy meds are the same and there are MANY different types — antihistamines, eye drops, etc. For a more comprehensive list, here is a link to the Mayo Clinic page regarding allergy medications.
Eventually, I will write a blog post about my own personal experience with depression and dramatically impaired memory and cognitive function as a direct result of long-term antihistamine use.
In the meantime, I’ve linked two academic research papers (Harvard and National Library of Medicine) regarding the established link between antihistamines and increased risk for dementia2 as well as “on cognitive (memory, mood, attention, sleep and executive function) and psychomotor performance”.3