<s>[INST] my daughter has a pain in her inner thigh that started on Saturday morning. It has been getting more painful, especially at night and has spread. This morning she said it has continued down to her foot . Her inner thigh is getting a red rash/raised area especially around the area that hurts the most. A red line is extending toward the groin as well as down her leg. She is 14. [/INST] Hi, Your daughter must have developed thrombophlebitis. Ask her to take complete rest and oral analgesics can be started. Visit a doctor as soon as possible for the specific management, as delay may aggravate the condition rapidly. Regards, Dr. Ajit Singh Kulhari MD - Skin & VD </s>