It is advisable to avoid salt, hot spices, sugar, honey and sweeteners (especially in drinks). Raw or undercooked eggs, fish and meat should be avoided. Processed meat products such as ham, bacon and sausage should also be avoided. You should also avoid raw milk and skimmed milk. It is better to avoid whole or coarsely chopped nuts and peanuts. They can be inhaled and get deep into the lungs. This can lead to health problems. However, they are harmless in grated form.