One reason you should get away from the tourist avenue and explore the nearby local’s alley. Near China Beach in Vietnam, I got a haircut, and a scary but effective, ear wax removal for a grand total of about $1. Now the loud truck and bus horns will really hurt!
I do have an ear wax removal method you can do yourself. Before you shower, fill one ear with vegetable oil and let it soak by lying on your side for five minutes, or more if you can stand it. Absorb the oil with a paper towel when you stand. Shower with a moderately strong stream of warm water into that ear. After a couple of minutes, turn your ear to the bottom of the shower, jump on your right leg and bang your head on the opposite side, gently.