Complex sentence: Other medications like bedtime antihistamines, antipruritic, sometimes pimozide, topical corticosteroids are used if there is another reason for the scratching are reserved for other conditions and further work up should be pursued.
Split into simpler sentences: Other medications like bedtime antihistamines, antipruritic, sometimes pimozide, or topical corticosteroids are used if there is another reason for the scratching. These are reserved for other conditions and further work up should be pursued.