1. Which Doctor should I see for blocked ears?

You should consult an ENT specialist.

2. Can I clean my ears regularly to avoid wax formation?

Wax is formed in the outer part of the ear canal, not in the inner portion near the eardrum. When you try to clean the ears with a cotton bud or any bent soft object, these objects only push the wax into deeper rather than taking it out. Also, the skin of the ear canal and the eardrum is very thin and fragile and can be easily injured. Earwax is healthy in normal amounts and acts as a coat on the skin of the ear canal where it acts as temporary water repellant. The absence of earwax can cause itching and dryness in your ears. Normally, you should never have to clean your ear canals. If you want to clean your ears, you can wash the external ear with a cloth over a finger, but do not insert anything into the ear canal. Most of the time the ear canals are self-cleaning. The slow and orderly migration of ear canal skin from the eardrum to the ear opening helps to transport the old earwax from the ear canal to the ear opening where it usually dries, flakes, and falls out.