Itchy bumps are usually caused by insect bite dermatitis, contact dermatitis and urticaria, which need to be treated as soon as they are found.
1. Insect bite dermatitis: If the outdoor protection is not appropriate, you may suffer from mosquito bites, and then mosquitoes will inject toxins into the skin, resulting in bags, which may also be accompanied by redness, swelling, pain or itching and other adverse symptoms.
2. Contact dermatitis: when the patient’s skin comes into contact with certain sensitizing or irritating substances, an allergic or irritating reaction will occur, resulting in bags, but also very itchy.
3. Urticaria: improper diet or medication may lead to dilation of blood vessels in the skin mucosa, which in turn increases permeability and triggers urticaria, making the body break out, accompanied by nausea, vomiting, diarrhea and itching and other symptoms.
There may be other causes of hives, it is recommended to go to the hospital to find out the cause, and follow the doctor’s instructions for symptomatic treatment.