put tape over them
That just means that your body is slower to mature. They will always remain puffy, learn to appreciate your body. You are unique and being unique is better than being normal or "default".
20mg-40mg per day for 1-3 months
It's called gynecomastia. It's normal to have those during puberty.
Wear a strapless bra.
No, this is fairly normal for boys in puberty.
Boys breast tissue swells during puberty. It is temporary.
Please don't listen to the above. I suggest you go and see your doctor. Only they will be able to give you the you want/ need. They are there to help you.
No, there is probably nothing you can do. If you're a teenager, rest assured that this is common. Your nipples will not be puffy in a couple years.
Well, logically, any place that clothing generally covers. Nipples, navel, or genitals.
I have puffy eyes. Or: My eyes are puffy.
They are just a natural condition. As you get older and your breasts are fully developed they will go away. Some women never get rid of them but to me that is actually a good thing.