Rash under armpit
Rash Under Armpit

Rash Under Armpit: Causes, Symptoms, Treatment, and When to See a Doctor

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Armpits are one of the skin areas that are most easily experience rash and irritated. This irritating rash causes itchy armpits and feels sore. 

Cause rash under armpit that makes itching and sore.

  • Friction.
  • Blisters.
  • Temperature.
  • Prickly heat.
  • Eczema (contact dermatitis).
  • Seborrheic dermatitis.
  • Yeast infections.
  • Razor blades.
  • Allergy.


The rash on your armpit may be caused by blisters due to the friction of the skin with coarse clothing materials. Armpit skin irritation can also be caused by precision when shaving the fur. A reddish rash on the armpits due to abrasions can be felt sore and cause skin to be crusted, cracked, until the bloody because of peeling.

Razor blades.

Are You used to shaving armpit fur?

If so, it should still be cautious because it is not impossible to shave can cause irritation, especially if You have sensitive skin.

Razors can injure or cut the skin, causing inflammation, and the bacteria in the armpit can further irritate the skin.

You can avoid rashes or infections caused by the exfoliation by using a shaving cream to make it smoother, and gently shave to avoid damaging the skin.

When you shave the armpit hair at night, it is best to wait until morning to use deodorant to avoid further irritation.

Symptoms of a rash in the armpit

Common symptoms of a rash under armpit include itching, small bumps on the skin, redness or darkening of the armpit, skin peeling, pain and odor increases. A more severe rash under armpit can cause dryness, cracking, pain and blistering skin, causing fever in some cases.

Read also: Causes of pain in armpit.

How to treat rash under armpit

How to treat rash under armpit

Usually, the red rash in the armpit can be treated with easy and inexpensive home remedies. Without having to go to doctors and chemical-based drugs, this is how to overcome the rash on the underarm.

  • Compress with ice cubes.
  • Eat a lot of vitamin C sources.
  • Do not wear tight clothing.
  • No heat / Look for a cooler place.
  • Bathe with warm water.
  • Change deodorant.
  • Calamine lotion.
  • Extra virgin coconut oil.
  • Aloe Vera.
  • Neem leaves.
  • Olive oil.
  • Baking soda powder.

Compress with ice cubes / Cold Water.

When a rash occurs in the armpits, do first aid by compressing it. Compresses with cold water, it can reduce itching on the armpits caused by a rash. Cold temperatures will also reduce irritation caused by excessive heat. It will even prevent the rash from developing into blisters. Wrap some ice cubes in a thin cotton towel and hold it on the affected area for a few minutes. Do this for 10 minutes, several times a day.

No heat / Look for a cooler place.

Hot, and humid environments can trigger the onset of a hot rash on the armpits. However, any rash that is not associated with heat can improve in cooler environments. Turn on the AC or fan to cool the air, or go to the shopping mall or a cooler place until the air temperature drops in the afternoon.

Aloe Vera.

Patting the gels from the Aloe Vera leaf in the rash area can lighten the itching to the rash on the surface of the armpit skin. Let stand for some time, then rinse with cold water until clean.

Neem leaves.

The antiseptic and anti-bacterial properties of neem leaves are able to help soothe itching and irritation in the armpit area.

By applying it across the surface of the armpit, the itching disappears instantly.

Olive oil.

Olive oil is known to have therapeutic properties. Apply on the rash area, the content of olive oil will penetrate into the skin effectively.

When should You see the doctor?

If your rash condition the following conditions, consult your doctor immediately for further treatment.

  • There are scars that are not lost in the armpits
  • Experience allergic reactions
  • Asthma

Well, now you already know how to overcome the red rash on your armpit? Try to follow the tips that have been provided so that the symptoms you feel are not getting worse.

Last Updated on July 9, 2019 Reviewed by Market Health Beauty Team

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