Histamines are chemicals that your body makes up to help get rid of something that’s bothering you. in relation to allergies, histamines help you get rid of by coughing, sneezing, itching, etc.
The answer is D. Intradermal. This preparation is administer by percutaneous route which means the application of certain medication to the skin for absorption. The drug mechanism of this is localized which means only specific to the affected site thus reducing the incidence of having a systemic adverse effects.
Inhaling and exhaling deeply.
Vitamin a
vitamin d
vitamin e
vitamin k