What should I do if my hand suddenly swells and itches?
There are numerous causes of redness, swelling, and itching in the hands. Common causes include allergic reactions; however, infection is also a frequent cause. Therefore, if hand swelling occurs, it is essential to promptly visit the dermatology department of a reputable hospital for evaluation.

If the condition is allergy-related, topical corticosteroid ointments may be applied locally, along with oral antihistamines. If infection is the underlying cause, the source wound should be identified, and topical anti-infective agents may be applied directly to the affected area.

Moreover, if the infection is severe, systemic anti-infective (antibiotic) therapy via oral administration may be required for etiological treatment. In cases of severe infection with subcutaneous abscess formation, surgical incision and drainage may be necessary.