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Skin conditions
Dermatitis
Heat rash

Heat rash

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The medical term is miliaria. A heat rash is a skin irritation that typically occurs during hot or humid weather. It results when sweat ducts are blocked, and sweat builds up under the skin. Symptoms of a heat rash include small red bumps and vesicles that are itchy and irritated.

Dr. Ally-Khan Somani reviewed this

21 year experience in Dermatology

Is a type of:

Dermatitis

How long it usually lasts:

Short-term (lasts days to weeks)

Medications

Ratings show how effective doctors think these medications are at treating Heat rash
Hydrocortisone
3.0
50 reviews
Calamine
2.8
55 reviews
Sarna cream
2.7
51 reviews
Capsaicin
1.9
46 reviews
Hydrocortisone cream
Load more

Related questions

A 43-year old asked:

How come I always get heat rashes?

1 doctor answer • 4 doctors weighed in

A 33-year old asked:

How can I stop the itching from heat rashes?

1 doctor answer • 1 doctor weighed in

A 29-year old female asked:

What's the quick way to treat heat rashes for babies?

1 doctor answer • 1 doctor weighed in

A 19-year old male asked:

I have some painless faint small redbdots in one sode of ny inner thies, it looks a bit like a bite, read about heat rashes but it dosnt go away.

1 doctor answer • 1 doctor weighed in

A 35-year old asked:

Are there any good home remedies for heat rashes?

1 doctor answer • 1 doctor weighed in

A 33-year old asked:

How long do leg heat rashes stay?

1 doctor answer • 2 doctors weighed in

A 43-year old asked:

How to avoid heat rashes from tanning beds?

1 doctor answer • 4 doctors weighed in

A 30-year old asked:

My skin has broken out in heat rashes and similar itchy bumps randomly. What is the cause?

2 doctor answers • 3 doctors weighed in

A 19-year old female asked:

I've been having leaking bladder and been getting heat rashes. Can a bladder that leaks causes heat rashes?

1 doctor answer • 4 doctors weighed in

A 17-year old male asked:

How long do heat rashes take to go away? They are on the inside of my legs and on my scrotom

1 doctor answer • 3 doctors weighed in

A 26-year old male asked:

Why do I get heat rashes on uncovered parts like my arm when mowing the lawn and how can I prevent it? Or do I just let my body cool down afterwards and not put anything on it?

1 doctor answer • 1 doctor weighed in

A 22-year old female asked:

Does the absorbent cornstarch mexsana medicated powder work for heat rashes? Rash under my right breast, came back but it's healing again.

1 doctor answer • 2 doctors weighed in

A 28-year old female asked:

I have heat rashes under my breast 5days ago and have treated it, but i have been noticing something like eczema on the surface of my breast area.help?

2 doctor answers • 2 doctors weighed in

A 25-year old female asked:

How can I identify if my baby has heat rash or eczema? Her rashes are red and its flaky on her face, because of dryness her cheek has a small cut now.

2 doctor answers • 4 doctors weighed in

A 72-year old male asked:

Hi Dr, I get repeated rashes the underside of my breast for which I am currently using Dermikelp as I do not want to use cortisone. Is this caused due to heat rash as I do suffer from the heat. What else can I do to ease the situation?

1 doctor answer • 2 doctors weighed in

A 37-year old male asked:

I am having red rashes on my arms since last 1 week. I started getting burning sensation since last 2 days and also rashes increased. They look like ring worm but am not sure if they can be heat rash or something else. Wanted to know the dr's opinion?

1 doctor answer • 1 doctor weighed in

A 25-year old female asked:

My 3 month old baby developed a prickly heat-like rashes all over the body with unknown cause. Need helpful advice?

2 doctor answers • 4 doctors weighed in

A 44-year old asked:

What is a heat rash?

4 doctor answers • 8 doctors weighed in

A 34-year old asked:

Does heat rash spread?

2 doctor answers • 3 doctors weighed in

A 60-year old male asked:

How to stop heat rash itch?

2 doctor answers • 4 doctors weighed in

A 29-year old female asked:

Does heat rash always itch?

1 doctor answer • 1 doctor weighed in

A 34-year old asked:

What will help a heat rash?

1 doctor answer • 1 doctor weighed in

A 32-year old male asked:

What are the symptoms of Heat rash?

1 doctor answer • 1 doctor weighed in

A 36-year old asked:

How come I have a constant heat rash ?

1 doctor answer • 3 doctors weighed in

A 38-year old female asked:

What's the best way to treat a heat rash?

1 doctor answer • 2 doctors weighed in

A 39-year old asked:

How can I help heat rash not itch so much?

1 doctor answer • 1 doctor weighed in

A 29-year old male asked:

Whats the best way to deal with heat rash?

1 doctor answer • 1 doctor weighed in

A 45-year old asked:

Heat rash, can it spread all over the body?

1 doctor answer • 1 doctor weighed in

A 19-year old female asked:

Is it possible to have heat rash since a child?

1 doctor answer • 2 doctors weighed in

A 40-year old male asked:

How can I ecxercise without getting heat rash?

1 doctor answer • 1 doctor weighed in

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