What is the typical treatment for an exanthematous/morbiliform rash?

The typical treatment for an exanthematous or morbilliform rash is oral antihistamines. This type of rash often arises as an allergic reaction or as a response to medications, and it is characterized by red, widespread spots or macules that may be itchy. Oral antihistamines are effective in managing the itching and discomfort associated with these rashes, as they work by blocking histamine receptors that are responsible for allergic symptoms.

While corticosteroids can treat inflammatory conditions, they are usually reserved for more severe or persistent cases rather than routine treatment for exanthematous rashes. Topical corticosteroids are generally used for localized inflammatory skin conditions, but are less effective for widespread rashes, which is why the systemic approach of oral antihistamines is preferred. Intravenous fluids are not a relevant treatment for a simple exanthematous rash unless the patient is experiencing severe dehydration or another condition that requires fluid resuscitation, which is not typical for this type of rash.