Rash on the abdomen

A rash on the abdomen can be very uncomfortable, especially if it is associated with itching. The rash often occurs in combination with other symptoms, but can also be completely isolated. The possible causes are diverse and sometimes difficult to treat.

Appearance and expression

The appearance and form of a rash on the abdomen are very different. The skin symptoms appear in the form of wheals, red spots, blisters, blisters, pustules (with or without pus), extensive reddening or small punctiform bleeding. The rash may itch, burn, cause pain, or be completely symptom-free. Sometimes only the abdomen is affected, but it is not uncommon for the symptoms to appear on other parts of the body.


The causes of the appearance of a rash on the abdomen are different in nature. These include infectious diseases, allergies, contact dermatitis, neurodermatitis, autoimmune diseases and food allergies.

Infectious diseases

Some infectious diseases are associated with a rash. These are mainly the well-known teething problems such as rubella, ringed rubella, measles, scarlet fever and chickenpox. In addition to the stomach, other parts of the body are affected by the rash.


Shingles, caused by the varicella zoster virus, can occur on various skin areas. This disease does not spread over the entire body like chickenpox (which has the same pathogen), but only in the area where the nerves are affected. The itchy rash often begins in the area of ​​the spine and then runs like a belt to the chest, possibly to the abdomen.

Days before the disease produces the typical rash in the form of small blisters, tiredness, a slightly elevated temperature and burning pain appear in the area affected. Because of the pain and the general feeling of illness, those affected usually see a doctor relatively quickly. This treated with antivirals and pain relievers.

Contact allergy

A contact allergy is an allergy to substances that have direct contact with the skin. For example, the jeans button, which irritates the skin on the stomach and then causes a rash. But a T-shirt or trousers that are worn unwashed can also cause rashes on the abdomen and other areas associated with clothing. Care products such as shower gel or body lotion are also to be counted among the substances that trigger allergies. The skin becomes inflamed and reddened, resulting in small, fluid-filled blisters and / or nodules, usually accompanied by severe itching.

Who knows what triggered the rash should of course avoid this. However, if the reason, or the trigger, is unclear, it is best to consult a dermatologist. This does a so-called patch test. Various allergens are applied to the back in the form of drops or ointments and taped with special plasters. The result can be read after 24, 48 and 72 hours and fixed in writing.

Treatment primarily requires avoiding the triggering allergen. Appropriate ointments, possibly also those containing cortisone, are used against the itching.

Drug eruption

An allergic skin reaction in connection with taking medication is called a drug rash. If the triggering medication is stopped, the rash usually disappears quite quickly. The drug rash often arises from taking penicillin. Other antibiotics can also trigger skin reactions. Other side effects such as diarrhea, nausea and vomiting, swelling of the mucous membrane and cardiovascular disorders are also common.

The rash may appear hours after the first dose of the medicine or up to two weeks later after the first dose. The rash is possible anywhere, on the entire body, but most of all it occurs on the trunk, i.e. on the back, stomach and chest. The skin reactions are quite different: redness, wheals, blisters or nodules.

The following medicinal products are possible for drug rashes: painkillers (e.g. ibuprofen, diclofenac, acetylsalicylic acid), local anesthetics, vaccines, heparin, anti-epileptics, insulin, contrast agents, ACE inhibitors, thyroid hormones and antibiotics.

Depending on the severity of the rash, the triggering medication is discontinued by the treating doctor. A replacement drug may be prescribed. The rash on the abdomen or other parts of the body is usually treated with ointments that contain an antihistamine or cortisone. If the allergic reaction spreads more and more, antihistamines in the form of tablets or infusions are sometimes necessary. In most cases, however, the rash heals on its own within a few days of stopping the “trigger”. The drug should be avoided forever. An allergy passport may be issued.


Too much sun can cause a rash on the stomach. This creates small pustules, which are usually accompanied by massive itching. Only the sun helps to avoid, cool and provide an itch-relieving cream, such as an aloe vera gel.


Neurodermatitis is an inflammatory skin disease that occurs in episodes. The skin is extremely dry, with massive itching. This disease can be inherited. Neurodermatitis is often associated with asthma, hay fever and allergies. In adults, the rash affects the eyes and forehead, the flexor side of the extremities and the back of the hands and feet.

In babies, eczema usually begins on the face, cheeks and parting. The scalp can also be affected. As the process progresses, the rash spreads to the abdomen and arms and legs.

Treatment of neurodermatitis includes skin care, modulation of the immune system and, if necessary, in the inflammatory stage, the use of ointments containing cortisone.

Autoimmune diseases

With an autoimmune disease, your own body attacks your own cells and tissues. At first there are diffuse symptoms such as tiredness, tingling in the hands and feet, digestive problems, itching and rash. The rash can appear on the abdomen or on other parts of the body. Autoimmune diseases are not always easy to diagnose and treat. Detailed investigations and tests are necessary here.

Food allergies, food intolerances

The symptoms of food allergies and food intolerances are very similar, although the two diseases are still different. In the event of an allergy caused by certain foods, those affected form corresponding IgE antibodies, which can sometimes lead to anaphylactic shock. So here the immune system gets out of hand.

In the case of food intolerance, such as lactose intolerance, the body lacks an enzyme, the so-called lactase, which normally breaks down the milk sugar into its constituents and thus makes it usable for the body. Here the symptoms arise from the partial or complete absence of the enzyme.

Symptoms in both diseases are: nausea, diarrhea, vomiting, itching, rash, swelling of the tongue and much more.

Home remedies

With an uncritical rash on the abdomen, when there is no infectious disease or shingles, home remedies can certainly provide relief.

Pads with tea

For example, a strong decoction can be made from chamomile flowers, nettle leaves or pansy herb so that a cotton cloth is soaked and then placed on the stomach. The affected areas can also be dabbed with the appropriate tea, several times a day.

Quark envelope

The versatile curd wrap also helps here. For this, curd is placed in a cloth and placed on it - ideally as long as this is perceived as pleasant. If you don't like curd or have it at home, you can also use yogurt as an alternative.

Lavender oil

If the rash on the abdomen is itchy, lavender essential oil can help. A good, high-quality lavender oil is used for this: For every 50 ml of good, cold-pressed almond oil, olive oil or sesame oil, there are 4 drops of essential lavender oil. With this mixture, the belly is rubbed in twice a day - preferably covered with a cloth so that the oil mixture can act better.

If you do not like lavender essential oil or are prone to allergic reactions, only use olive oil, without any additives.

Fruit vinegar

If the areas on the abdomen are not scratched, a mixture of water and fruit vinegar in a ratio of 1: 1 can help - this will dab the rash over and over again.

Aloe vera gel

Aloe Vera has an anti-inflammatory, healing and relieves itching. In this respect, treatment with a good, high-quality aloe vera gel is definitely a good way to remedy the rash on the abdomen.


Honey not only tastes delicious, but also contains healing substances that, when applied externally, can have their effect. A good, high-quality honey is applied to the affected areas, left there for at least one hour and then washed off with a little lukewarm water. Especially if the rash is itchy, this brings relief relatively quickly.

Healing earth or oatmeal

Rash that wets and / or itches can tolerate conditions with healing clay. A porridge made from healing earth and water is mixed, applied to the stomach and covered with a cloth. Once the healing earth has dried, it is washed off with lukewarm water.

As an alternative, oatmeal can be used, which is crushed in the mixer before use.

Mixture of quark, oil and healing earth

Two tablespoons of curd cheese, one tablespoon of healing earth and two tablespoons of olive oil are mixed and serve as a paste, which should then cover the rash. As long as this edition is pleasant, it can stay. Then it is removed with lukewarm water.


Salt has a disinfectant, anti-inflammatory and antipruritic effect. For an envelope, 10 grams of salt (Himalayan salt or sea salt) are mixed with one liter of water, a cloth is soaked with it and placed on the affected areas on the stomach. The cloth stays there as long as it is perceived as pleasant.

Zinc, calendula

Zinc and calendula ointment should not be missing from the list of home remedies already listed. Both have a healing and nourishing effect and can also provide relief from itching.

Schuessler salts

Schüßler salts can be used internally, but also externally. Externally, either as an ointment or gel (all 12 Schüssler salts are available in both variants). But the small tablets can also be used externally. For this, the appropriate salt is simply mixed with a little water to make porridge and then applied and washed off again later. Applicable Schüssler salts for rash on the abdomen are No. 3 Ferrum phosphoricum, No. 7 Magnesium phosphoricum and No. 8 sodium chloratum. (sw)

Author and source information

This text corresponds to the specifications of the medical literature, medical guidelines and current studies and has been checked by medical doctors.

Susanne Waschke, Barbara Schindewolf-Lensch


  • Elizabeth H. Page: Itching (pruritus), MSD Manual, (accessed 09.09.2019), MSD
  • Thomas Werfel et al .: S2K guideline for neurodermatitis, German Dermatological Society, (accessed 09.09.2019), AWMF
  • Kenneth M. Kaye: Herpes Zoster (shingles; acute posterior ganglionitis), MSD Manual, (accessed 09.09.2019), MSD
  • Dorothea Terhorst-Molawi: Dermatologie Basics, Elsevier / Urban Fischer Verlag, 4th edition, 2015
  • Martin Röcken, Martin Schaller, Elke Sattler, Walter Burgdorf: Taschenatlas Dermatologie, Thieme Verlag, 1st edition, 2010

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