Hi, greetings; you seem to have had an urticarial reaction secondary to insect bite.You will need - topical calamine lotion applied two to three times a day for symptomatic relief. if the swelling/ itching continues then topical corticosteroid creams are indicated under prescription of the dermatologist. Also and oral antihistmaine like cetrizine will help. Further queries may be sent on follow up chat. Dr Govind Suresh Mittal