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.
hives (itching and redness caused by hives) sneezing; runny nose; Loratadine is the most standard treatment for hives (among several other medications as clematine, diphenhydramine and chlorpheniramine). Do not use Alavert for treating hives of unusual color, condition (hives that is bruised) or with unusual symptoms (for example hives that do not itch).