A child is 4 years and 8 months old with adenoid hypertrophy, currently almost completely blocked. The child breathes through the mouth during afternoon naps and makes a snoring sound upon falling asleep, which is not very severe. Various traditional Chinese medicines and acupuncture have been tried without effect. The child’s parents are considering surgery but are unsure of the potential drawbacks or complications.

Vocal cord nodules are a common otolaryngological condition, often caused by improper vocalization or excessive use of high-pitched sounds leading to inflammation of the vocal cord mucosa. The risks and treatment options are inquired about.

Discuss the potential complications of scalp hemangioma surgery, the best treatment methods, and provide postoperative care suggestions.