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.
Lifestyle and home remedies. Take an oral allergy or anti-itch medication. Options include nonprescription allergy medicines (antihistamines) â such as cetirizine (Zyrtec) or fexofenadine (Allegra). Also, diphenhydramine (Benadryl, others) may be helpful if itching is severe.