Hello, You are suffering from extreme tightness, swelling, numbness in the arms after bilateral underarm surgery for hidradenitis. Sores and scar tissue can cause limited or painful movement in the arms. Scar tissue can interfere with the lymph drainage system, which can result in swelling in the arms and trigger pain. It can also be caused due to extensive resection during surgery using skin flaps or skin grafts as a closure method. It can be associated with a higher incidence of complications. Careful consideration of the use of extensive resection or using skin flaps or skin grafts as a closure method can minimize the risk of complications post surgery. Daily antiseptic wash to cleanse affected area may help, it can be done by a health care provider. Ointments and creams containing vitamin A can help to reduce inflammation. Ice packs or warm compresses and lidocaine skin cream or ointment may be helpful. Over-the-counter or prescription pain medications are helpful, do continue to take the medicines. Get a follow up clinical examination done by your treating surgeon, so that complication can be treated. He may refer you to pain management specialist. Take care. Hope I have answered your question. Let me know if I can assist you further. Regards, Dr. Nupur K., General & Family Physician