Although exercising regularly is highly recommended to stay healthy, it is important not to overdo it and be alert to any alteration that may appear while you are doing some type of physical activity. It is essential to go to a medical consultation before starting any type of sport, to do the corresponding studies and be sure that we can submit to physical efforts without putting our health at risk.
Despite the above, there are many people who begin to feel different sensations when they exercise, for example, itching all over the skin when they start to sweat. That is why, if you wonder why my skin itches when I sweat, we invite you to continue reading the following FastlyHealarticle for more information.
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Sweat allergy, possible cause
The most common cause of the sensation of itching on the skin when sweating and that does not represent a health problem as such is due to the increase in blood pressure in the capillaries , this increase is due to the demand of the muscles during physical effort . Therefore, by reducing the activity, this itching disappears without presenting any other symptoms or alteration, in addition, as the body gets used to these practices, the discomfort when sweating may no longer appear.
On the other hand, cholinergic urticaria may be one of the answers to your question as to why my skin itches when I sweat, since it is present when there is a sudden increase in body temperature, for example, when you finish exercising. or while sweating from other situations. Many people define this disorder as an allergy to sweat and therefore it could be a serious condition, becoming a reason why many men and women begin to feel dissatisfied when undergoing various physical efforts, suffering from hives after running.
Although it is a little-known pathology, it is a disease that affects more and more people, although the cause of why the body responds to an increase in body temperature is unknown, it is considered that some risk factors could be:
- Environmental pollution.
- Bad eating habits.
- The sedentary lifestyle.
Patients with cholinergic urticaria suffer from severe itching of the skin with increased body temperature and sweating, which is why this disorder is also known as sports allergy, however, this and the other symptoms that appear in those who suffer of cholinergic urticaria may also occur in other circumstances which are not related to a physical effort such as when a person is going through a situation of nerves , stress or the eating spicy and stimulates sweating. Likewise, it can also occur during baths with hot water, on days of high temperature in which the person is subjected to the sun and heat, among other situations.
Main symptoms of cholinergic urticaria
The most characteristic sign of cholinergic urticaria is skin itching, which is often the only manifestation in mild conditions of the disease. However, in more severe forms the person may notice other symptoms similar to those of various allergies and should be treated immediately, including:
- Lesions on the skin.
- Sometimes respiratory disturbances occur, making it difficult for the patient to breathe normally.
- In some cases wheezing may appear when the patient breathes.
- In the most extreme situations, angioedema occurs, causing a swelling of the tissues and the skin, that is, a swelling due to the accumulation of fluids in an area.
- Low blood pressure , known as hypotension.
Treatment for cholinergic urticaria
To carry out the correct treatment for this sports allergy, it is essential to visit a doctor . He can choose several treatments, since there are many drugs and creams that can help considerably to reduce some of the symptoms caused by this alteration.
The specialist may recommend antihistamines because they help relieve itching and eliminate hives on the skin while preventing the formation of new skin changes. On some occasions, it may be necessary to combine several drugs to improve results and continue treatment after the changes have disappeared.
In turn, it is important to change some habits to get rid of itchy skin when in doubt. For instance:
- Have a properly balanced diet.
- Do not eat spicy.
- Do not consume alcohol.
- Do not have direct contact with chemicals such as bleach.
- Do not submit to places with high temperatures or direct sun.
- Wear loose, cotton clothing.
- Staying properly hydrated when exercising.
This article is merely informative, at FastlyHeal .com we do not have the power to prescribe medical treatments or make any type of diagnosis. We invite you to see a doctor in the case of presenting any type of condition or discomfort.
If you want to read more articles similar to Why does my skin itch when I sweat , we recommend that you enter our Skin, Hair and Nails category .

I am a Surgeon with a diploma in comprehensive ultrasound and surgical care residency, an area I am specializing in. During the exercise of my profession, I have realized the need for patients to know the diseases they suffer, and I can tell you that a large part of their complications is due to a lack of information. Being a health web writer allows me to transmit my experience, without borders, to all those readers eager for knowledge, educate them in the prevention of diseases and promote a healthy lifestyle.