20 Reviews. Claritin-D is the brand name of a medicine that combines the antihistamine Claritin (loratadine) and a nasal decongestant (pseudoephedrine). Combined, loratadine and pseudoephedrine reduce symptoms such as a runny or stuffed nose, sinus pressure, itchy red eyes or skin, and the phlegm from a cough.
Causes of Keratosis. Some types of keratosis are caused by sun exposure. Genetics may also play a role since there is usually a family history of keratosis. Keratosis: Related Medical Conditions. Keratosis: Causes and Types. Keratosis as a symptom: Conditions listing Keratosis as a symptom may also be potential underlying causes of Keratosis.
Keratosis pilaris results from the buildup of keratin â a hard protein that protects skin from harmful substances and infection. The keratin forms a scaly plug that blocks the opening of the hair follicle. Usually many plugs form, causing patches of rough, bumpy skin. No one knows exactly why keratin builds up. But it may occur in association with genetic diseases or with other skin conditions, such as atopic dermatitis.