After being stung by an unknown bug, the skin appears hard, red and swollen, consider the bug bite dermatitis, can be treated by topical medication, oral medication and so on.
1. Topical medication: under the guidance of a doctor, you can use glycerine lotion, compound indomethacin tincture and other drugs, you can also apply glucocorticoid drugs, such as mometasone furoate cream, dexamethasone ointment and other treatment.
2. Oral medicine: with itching symptoms can be taken under the guidance of the doctor loratadine, cetirizine and other drugs for anti-allergy treatment. In severe cases, small doses of oral glucocorticosteroids, such as prednisone tablets, can be taken for a short period of time.
If the skin is red, swollen and hard, and the symptoms continue to be unrelieved, you need to go to the hospital in a timely manner, by a professional doctor for targeted treatment and treatment, avoid unauthorized use of drugs.