Prevention: ear plugs (Blu-tak works if you don't have the expensive gel ones)
Treatment:
- 2 drops of vodka in the affected ear, every few hours
- 2 Panadols every 4 hours
- Ear drops, if Vodka doesn't work. After 24 hours of treatment, all good. Price 55 000 rupiah (50 000 rupiah on Jalan Legian, near Jalan Melasti) A bargain.