Lately i've had skin rashes and itchiness. should i use calamine lotion or aloe?

Either: Either may help with symptoms. Hydrocortisone cream which is available over-the-counter may both relieve the symptoms and help get rid of the rash. Antihistamines like claritin, zyrtec and Benadryl (diphenhydramine) will also help for both.

Xerosis: Calamine lotion are great for viral exanthem! aloe vera are great for innate moisturizers and skin calming properties! apply as directed , regards!