Final answer:
The signs and symptoms of scabies are a rash and intense itching, which differentiate it from conditions like eczema, psoriasis, or other parasitic infections.
Step-by-step explanation:
The signs and symptoms of scabies include a rash and intense itching. Scabies is a skin infestation caused by a mite known as Sarcoptes scabiei. These microscopic mites burrow into the skin, causing a rash and intense itching, which is often worse at night. Unlike eczema, which is an allergic reaction characterized by dry, itchy patches of skin, scabies involves the presence of the mites themselves, not just an allergic response.
Options A and B are incorrect. While a burning sensation can occur with various skin conditions, it is not a specific symptom for scabies. Likewise, although scabies mites are tiny, they are generally not seen crawling on the skin or bedding. Option C, nits, refers to the eggs of lice and is not related to scabies. However, a rash and intense itching are hallmark symptoms of scabies (Option D) due to the body's allergic reaction to the mites, their eggs, and feces.
Management of scabies involves prescription medication, often in the form of topical creams or oral drugs, to kill the mites. Additionally, cleaning and treating clothing, bedding, and other personal items are necessary to prevent re-infestation. It is essential to differentiate scabies from other skin conditions like eczema, psoriasis, or parasitic infections such as trichomoniasis, which present with itching but have different causes and treatments.