What is Physical Urticaria

What is Physical Urticaria?

See also; Chronic idiopathic Urticaria

Guest Post: Nadia

physical urticariaPhysical urticaria is another form of hives and is brought on by some sort of allergic reaction from the environment and it often results in skin turning red and becoming itchy like a rash. Welts may appear on the skin as well and there are a number of environmental factors that can contribute to this type of outbreak including the sun. There are several other factors that can lead to these outbreaks including cold temperatures, sweat, the sun, pressure, and other factors. These hives will typically go away on their own over time so the main thing is to eliminate the itching before a person scratches their skin raw. There are a number of oral treatments and topical creams that can be used and phototherapy is often times used.

Hives come from histamine that is released into the bloodstream resulting in an allergic reaction to something. There are certain areas where it gathers and this is what causes the welts and the itching rash. There are many people who experience allergic reactions to certain triggers in the environment. There is no definite reason as to why this may occur.

Types of physical urticaria

Aquagenic Urticaria

One rare form of physical urticaria is known as aquagenic urticaria and this is where water exposure leads to allergic reactions. However, the temperature of the water isn’t a factor in the reaction on the skin. Water can be either cold or even warm but there is still a reaction.

Solar Urticaria

Yet another rare form of Physical Urticaria is from the sunlight. If solar urticaria is present in an individual, an itchy rash is developed where the sun hits and to help avoid this make sure you avoid the sun or keep yourself covered. This can be with sunscreen or hats and proper clothing.

Delayed Pressure Urticaria

This is another form and is caused from delayed pressure for a set amount of time. For example, if someone has a seatbelt on that is too tight around their waist they may develop some sort of symptoms after a period of time. This will typically show its head about 4-6 hours after the fact of the pressure being applied.

Cold-Induced Urticaria

This is something that is not very common and this occurs when the skin is exposed to cooler temperatures. This means that when your skin is exposed to cold conditions such as snow, rain, or wind hives may set in. However, medical professionals are not sure if the cold is what triggers these hives or if it occurs when the skin gets warmer. You can either experience the rash in a localized area or they can be across larger areas of the body.

These types of physical urticaria have no cure to them and there are some people that find a number of over the counter medications to take to help suppress the symptoms. There are anti-histamines that can help with the itching and there are lotions that can help with the itching as well.



We would like to thank Nadia for her great post on Physical Urticaria. Although everything Nadia has written about the condition we still believe that the urticaria outbreaks are actually a symptom of an underlying condition which we believe to be autoimmune disease.

If you would like to read more about our theory of what causes urticaria and how Paulette managed to beat her chronic urticaria please take a look at our home page. Also suitable for physical urticaria.

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One Comment

  • kalpana says:

    Its a worse condition of mine today with this chronic Urticaria condition. I am sick and tired completely.It completely occupied my life, and made it a hell by filling my skin with wheels and welts. what ever i eat or touch it shows its result in next movement with severe itching. for any kind weather condition or for any
    outfit i wear i have to suffer with red patches on my body. uncountable bumps and lumps made their permanent residence on my skin.dying with this problem .Used 100+ medicines by approaching different doctors from 2 years. nothing happened.please help me.

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