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.
Treating acne, eczema, psoriasis, sunburn and rosacea. The essential fatty acids in flaxseed oil are largely responsible for its skin-healing powers. Red, itchy patches of eczema, psoriasis and rosacea often respond to the EFA's anti-inflammatory actions and overall skin-soothing properties. Sunburned skin may heal faster when treated with the oil as well.