I treated my face with aloe vera to smoothen out the allergic reaction of using benzoyl peroxide.but still my face is itchy and dry!

Benzoyl peroxide : That is a side effect of benzoyl peroxide. If you cannot tolerate this stop using it.

Need more: You need a topical antihistamine to act locally at the sit of the allergic reaction. Apply topical benadryl, (diphenhydramine) and consider taking a Benadryl (diphenhydramine) or zyrtec oral antihistamine. It is best to be seen by a physician if these basic measures do not help within 24 hours.