
Do I still need to apply medication after the blister beetle dermatitis has formed a crust?
I previously had dermatitis caused by rove beetles, and it has now formed scabs. Is it still necessary to apply medication at this stage? Will not applying medication leave scars?

Generally, medication is not needed once the skin lesion of paederus dermatitis has formed a scab.
Scab formation in paederus dermatitis is a natural part of the skin's healing process following injury, usually indicating that the inflammatory reaction has subsided. In such cases, if there are no obvious symptoms such as redness, swelling, pain, or itching, continued application of topical medication is generally unnecessary. At this stage, it is important to keep the skin clean and dry, and to avoid scratching or friction in order to promote natural shedding of the scab and facilitate healing.
If the patient experiences itching or discomfort, antiallergic medications or topical corticosteroid creams, such as hydrocortisone cream, may be used under a doctor's guidance to relieve symptoms. However, corticosteroid creams should not be used extensively or for prolonged periods; the frequency and dosage should be adjusted according to medical advice. Additionally, before the scab has completely fallen off, it is advisable to avoid strenuous physical activity or wearing clothing that might cause friction, to prevent damage to the newly formed epidermal tissue and delay healing.
In daily life, patients may use mild moisturizers or emollients to keep the skin hydrated, which can aid in healing and reduce itching.