Question

when recommending an over - the - counter topical medication to treat a dermatologic condition, which instruction to the patient is important to enhance absorption of the drug?
apply a thick layer of medication over the affected area.
a solution spray preparation will be more effective on hairy areas.
put cool compresses over the affected area after application.
use a lotion or cream instead of an ointment preparation.

Explanation:

Applying a thick layer doesn't necessarily enhance absorption and may cause waste. Cool compresses can constrict blood - vessels and reduce absorption. Lotions and creams have less occlusivity than ointments which can enhance absorption. A solution spray preparation can penetrate better through hair on hairy areas, thus enhancing drug absorption.

Answer:

B. A solution spray preparation will be more effective on hairy areas.