Meats (tallow, chicken fat, goose fat, duck fat, or others). Raw dairy products (butter, cream, whole milk or full-fat cheese or yogurts). Sardines (some others such as salmon, tuna and others have some quality fats, but are too high in mercury to be healthful foods).
Pimples in the nose are not usually the same as those on other parts of the surface of the skin. It is usually as a result of folliculitis which is caused by infection of hair follicles in the nostrils. Mostly it is as a result of bacterial imbalances which could be triggered by a number of factors.
Most of the time when a bump develops inside of the nose, it causes slight pain and swelling. For some, the bump clears up within a few days, especially if it is a pimple. However, it can also increase in size and cause the nose to swell. It also becomes more painful.