A 3-month-old boy presents with dry, excoriated skin on his face, chest, back, arms and legs that appeared over the past few months

A 3-month-old boy presents with dry, excoriated skin on his face, chest, back, arms and legs that appeared over the past few months, and has become worse over the last month. His mom states he cries a lot when he is bathed or dressed. She is concerned that he is uncomfortable. She has tried moisturizers, Vasaline, washing his clothing in fragrance free/dye free detergents, and applied a topical corticosteroid to his skin daily. He is formula fed with cow-based formula. The best approach to his care is: Group of answer choices change his formula to a hydrolyzed formula that is best for infant’s with cow’s milk allergy instruct the mom to not bathe him as frequently refer him to an allergist for allergy testing increase the strength of the corticosteroid