
What causes small, itchy bumps on the body?
I have developed many small bumps on my body; they are very itchy, become redder when scratched, and some have even been scratched open. What could be causing this, and what medication should I use?

Developing small bumps on the skin accompanied by itching may be caused by various factors.
Allergic reactions are a common cause, possibly triggered by substances such as food, medications, pollen, or pet dander. Secondly, skin inflammations, such as eczema and contact dermatitis, can also lead to these symptoms. Urticaria (hives) is another common cause; it may be induced by emotional fluctuations, allergens, and other factors, with symptoms including skin itching and edematous swellings.
In addition, skin conditions such as dermatitis, prickly heat (heat rash), scabies, and folliculitis may also cause such symptoms. Some medications' side effects, endocrine disorders, or chronic diseases may manifest as small bumps and itching on the skin.
Infectious skin diseases should not be overlooked either. Viral infections such as molluscum contagiosum, bacterial infections like folliculitis, and fungal infections causing tinea corporis (ringworm) can all present with bumps and itching.
If symptoms persist without improvement, or if there is discharge, fever, or other discomfort, prompt medical attention is advised. A physician can determine the underlying cause through examination and provide targeted treatment.