when used locally Diphenhydramine hydrochloride has an anti-itch effect.

This item Can be sold to only hospitals, clinics, pharmaceutical factories, pharmacists, doctors for use in research only. or a document certifying a hospital (clinic/hospital) 

Diphenhydramine Hydrochloride (99%)

Diphenhydramine hydrochloride is known as an oral antihistamine used to relieve allergy symptoms. However, it is not commonly used topically.

when used locally Diphenhydramine hydrochloride has anti-itch effect Some over-the-counter products contain diphenhydramine hydrochloride in the form of a topical cream or gel to relieve itching, such as insect bites or skin rashes.

Note that although diphenhydramine Hydrochloride may provide temporary relief from itching and provide a soothing effect. However, it does not treat the cause of the itching or rash. If you have persistent skin conditions or severe itching It is advisable to consult a medical professional for an accurate diagnosis and appropriate treatment options.