Limbs itch and bumps appear when scratched

When our limbs feel itchy, we will scratch them reflexively, hoping to relieve the itchy feeling. But some people dare not scratch their limbs even if they feel itchy, because scratching will cause a lot of bumps. If this happens, it's best not to deal with the bumps yourself. There are many reasons for pimples, and if they are not handled properly, they can cause great harm to the body. So, why do bumps appear on your limbs when you scratch them?

Many people have pimples. When pimples appear on the body, they must be improved in time, otherwise it will not be of any benefit to yourself. When the pimples become serious, they will cause skin diseases, which will be very complicated to treat, so this is also something to pay attention to.

1. Why do I feel itchy all over my body and get pimples when I scratch them?

Do the bumps disappear on their own? If they do, it is considered a symptom of urticaria. Urticaria is mainly caused by low immunity, dysfunctional body functions, and some symptoms of blood toxins and blood heat in the body. When they accumulate in the body and are stimulated by external factors, they will flow down to the epidermis and cause this phenomenon.

The cause of urticaria is very complicated, and the cause cannot be found in about 3/4 of patients, especially chronic urticaria. The common causes include: food and food additives; inhalants; infection; drugs; physical factors such as mechanical stimulation, cold and heat, sunlight, etc.; insect bites; mental factors and endocrine changes; genetic factors, etc.

2. Clinical manifestations

The basic lesion is the appearance of wheals on the skin. The skin often itches first, followed by the appearance of wheals, which are bright red or pale, skin-colored. A few patients have edematous erythema. The size and shape of the wheals vary, and the onset time is uncertain. The wheals gradually spread and merge into sheets. Due to edema of the dermal papillae, the openings of the epidermal hair follicles can be seen sunken downward. The wheal lasts from several minutes to several hours, and in some cases it can last for several days before disappearing without leaving any trace. The rash occurs repeatedly in batches, mostly in the evening. Wheals are often generalized but may also be localized. Sometimes it is accompanied by angioedema, and occasionally bullae form on the surface of the wheal.

Some patients may experience nausea, vomiting, headache, head swelling, abdominal pain, and diarrhea. Severe patients may also have systemic symptoms such as chest tightness, discomfort, pale complexion, accelerated heart rate, weak pulse, low blood pressure, and shortness of breath.

After understanding why your whole body itches and bumps appear when you scratch them, you should improve the situation according to your own situation. In addition, you should not drink alcohol or eat spicy food when treating skin problems. These foods are of no help in treating bumps on the body. At the same time, choosing too many of these foods will hinder the treatment of bumps.