Bumpy, Red Rash

Bumpy rash may be caused due to varied underlying conditions. The rash may be itchy, discomforting, irritating, or painful. It may cause the skin to become reddish and may increase the risk of dry skin and/or scaly skin. It usually develops in certain body areas like the armpits, face, back, and groin, etc. Bumpy rash can affect people of all age groups.

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Bumpy rash may be caused by varied skin disorders or as an adverse effect or reaction to medications, chemicals, insect bites, foods, weeds, or plants. Bumpy rash that forms as part of an allergic reaction can be dangerous and even become fatal. Hence, in such cases immediate medical care is needed.

People with itchy bumpy rash, especially children, may scratch the rash to find relief from the itchiness. Excessive scratching can cause the skin to tear and result in a wound. Such open wounds are then prone to secondary bacterial infections.

Treatment of bumpy rash is dependent on the underlying cause. Minor cases can be resolved with home remedies, while severe allergic reactions need emergency medical attention.

Causes of bumpy rash 

Bumpy rash may be caused due to the below listed pre-existing conditions:

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  • Folliculitis: It is a skin condition marked by inflammation of the hair follicles. Any area of the body can suffer from occurrence of folliculitis. It is however generally observed as an itchy and bumpy rash on body areas such as the underarms, face, and back section of knee, etc. It may be noted that the skin condition is more prone to developing in areas when the hair is regularly shaved off, or those subjected to constant friction or rubbing against the skin, jewelry, and clothes, etc.
  • Eczema: Also called as topic dermatitis, eczema is an itching bumpy rash which typically occurs in children. The skin condition is usually marked by chapped, dry, and bump rash on the skin adjacent to the knees and elbows. Severe instances of eczema may result in scaly, red, inflamed, and swollen skin on any area of the body.
  • Picker’s acne: It is a bumpy rash caused by regular squeezing and picking of acne lesions. Teen girls are more prone to developing this condition than others. It is also termed as acne excoriee.
  • Irritant contact dermatitis: It is caused due to exposure of the skin to varied irritants like scented soaps, chemicals, and detergents, etc. Another type of skin irritant is sunburn. Patients may suffer from a bumpy rash, itchiness, and reddish discoloration of skin, etc.
  • Dyshidrotic eczema: This skin disorder is marked by formation of deep and clear pips which itch and cause burning sensations. The most clear symptoms of the condition include redness, itchiness, and irritation of the skin area affected by dyshidrotic eczema. In most cases, an itchy bumpy rash forms on the hands. Sometimes, the lower limbs may also develop the rash.
  • Allergic contact dermatitis: It is caused due to contact of the body with any kind of allergen. Anything which elicits an allergic reaction from the body is referred to as an allergen. It can be hair dye, rubber, metal, nickel, etc. Nickel allergy patients typically sport a scaly, reddish, crusty, and bump rash at the site where the metal made contact with the skin. Urushiol resin or oil present in plants like poison sumac, poison oak, and poison ivy can also trigger allergic contact dermatitis rashes.
  • Seborrheic keratosis: Doctors are not aware of the precise cause of this skin condition. It is characterized by a bumpy rash with increased growth of cells occurring in the top skin layers. The rash may develop in groups or as a single layer.

Bumpy Red Rash – Pictures


Treatment of bumpy rash

Bumpy rash is treated as per the underlying cause. A few treatment options are listed below:

  • Bumpy rash caused due to an allergic reaction needs to be immediately checked by a doctor. Severe cases are treated with antihistamines. For mild rashes, patients may take a cool shower or bath and apply calamine lotion to find relief from itching, redness, and other symptoms.
  • Emollients and other moisturizers can be used for treatment of eczema rash. It will help soothe the skin, alleviate itching, and help the skin retain water.
  • Secondary bacterial infections of wounds caused by scratching need to be treated with antibiotics.

Home remedies include:

  • Create a mixture of corn starch, baking soda, and warm water in a tub. Then soak the affected area in the solution for around 10 minutes. It will help ease the itchiness.
  • Application of fresh milk can ease skin irritation
  • Take aloe vera pulp and apply on bumpy rash. Wash off with water after about 30 minutes. The plant has antibiotic, antiseptic, and anti-inflammatory properties which will help quicker recovery from the rash.


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