The active ingredient gets most of the attention, but the vehicle it's delivered in changes how a topical medication actually performs: how occlusive it is, how it feels on the skin, and which body sites and skin conditions it suits best. See our skin absorption article for the mechanism behind why vehicle matters this much.

Vehicle Comparison

VehicleOcclusivityBest forNotes
OintmentHighDry, thick, or lichenified skin; palms/solesGreasy, poor cosmetic acceptability; least likely to sting on broken skin
CreamModerateGeneral use; intertriginous areas in a thinner creamContains preservatives/emulsifiers, occasional irritant or allergen source
GelLowScalp, hairy areas, acne-prone/oily skinCan be drying or stinging on broken skin; fast-drying, non-greasy
LotionLowLarge body surface areas, hairy areasEasy to spread thin; less occlusive than cream
Foam / Solution / SprayLowScalp, large or hard-to-reach areasHigh patient acceptability and adherence; often costs more

Topical Drug Class Comparison

ClassPrimary useOnsetKey counseling point
CorticosteroidsInflammatory dermatosesDaysPotency and duration limits; see our potency framework
Calcineurin inhibitorsEczema, sensitive-area maintenanceWeeksSteroid-sparing; transient burning on initial application is common
RetinoidsAcne, photoagingWeeks to monthsStart low and slow; see our retinoid counseling guide
AntifungalsDermatophyte, candidal infections1–2 weeksComplete the full course even after symptoms resolve
AntibacterialsImpetigo, infected lesionsDaysDistinguish true infection from colonization where possible
AntiviralsHerpes simplex, cold soresHours to daysMost effective when started at first prodromal symptoms

This is an educational quick-reference chart and does not constitute medical or pharmaceutical advice. Product selection should always follow individualized clinical assessment and current prescribing information.