Aldehyde, Ketone, Carboxylic Acid Aldehyde: Aldehyde is an organic compound which contain formyl group. This functional group, in its structure R-CHO, consist of carboxyl centre bonded to R group and hydrogen.
1 Infections, bites and stings, infestations, chronic diseases, allergic reactions, sun exposure, and dry skin are among the numerous causes of itching.  Anti-itch creams and lotions containing camphor, menthol, phenol, pramoxine (Caladryl, Tronolane), diphenhydramine (Benadryl), or benzocaine can bring relief.
1 doctor agreed: Scaly dry skin: Moisturizers are the treatment of choice - lotion during the day and ointments at night. Washing the face with soap and water 2x a week will also help; during those alternate days, use non-soap cleansers like cetaphil. Mild Hydrocortisone creams may slow down the dryness and alleviate associated itching.