Heat rash — Learn more about the symptoms, causes and treatment of this heat-related problem of the skin that affects people of all ages.Scheduleyourappointmentnowforsafein-personcare.Learnmore:MayoClinicfactsaboutcoronavirusdisease2019(COVID-19)Our COVID-19patient andvisitorguidelines,plustrustedhealthinformationLateston COVID-19vaccination bysite:ArizonapatientvaccinationupdatesArizona,FloridapatientvaccinationupdatesFlorida,RochesterpatientvaccinationupdatesRochesterandMayoClinicHealthSystempatientvaccinationupdatesMCHSSkiptositenavigationSkiptoContentThiscontentdoesnothaveanEnglishversion.ThiscontentdoesnothaveanArabicversion.SectionsforHeatrashSymptoms&causesDiagnosis&treatmentPrintDiagnosisYoudon'tneedteststodiagnoseheatrash.Yourdoctordiagnosesitbyitsappearance.TreatmentAvoidingoverheatingmaybeallyouneedtodoformildheatrash.Onceskiniscool,heatrashtendstoclearquickly.OintmentsMore-severeformsofheatrashmayrequireointmentsyouapplytoyourskintorelievediscomfortandpreventcomplications.Suchtopicaltreatmentsmayinclude:CalaminelotiontosootheitchingAnhydrouslanolin,whichmayhelppreventductblockageandstopnewlesionsfromformingTopicalsteroidsinthemostseriouscasesLifestyleandhomeremediesTipstohelpyourheatrashhealandtobemorecomfortableincludethefollowing:Inhotweather,dressinloose,lightweightclothingthatwicksmoistureawayfromyourskin.Spendasmuchtimeaspossibleinair-conditionedbuildings.Batheorshowerincoolwaterwithnondryingsoap,thenletyourskinair-dryinsteadoftowelingoff.Usecalaminelotionorcoolcompressestocalmitchy,irritatedskin.Avoidusingcreamsandointmentsthatcontainpetroleumormineraloil,whichcanblockporesfurther.PreparingforyourappointmentAdoctor'sappointmentusuallyisn'tnecessaryforheatrash.Ifyourrashismoresevere,youmaywanttoseeyourprimarycaredoctororadoctorwhospecializesinskindisorders(dermatologist)tobesureit'sheatrashandnotanotherskindisorder.Beforeyougo,it'sagoodideatolistquestionsyouhaveaboutyourcondition.Forheatrash,questionstoaskyourdoctorinclude:Whatcouldhavecausedthisras