Gastroenterocolitis disease on its own. The most important factor when treating gastroenteritis is the replacement of fluids and electrolytes that are lost because of the diarrhea and vomiting. Antibiotics will not be effective if the cause of gastroenteritis is a viral infection. Doctors usually do not recommend antidiarrheal medications (e.g., Loperamide) for gastroenteritis because they tend to prolong infection, especially in children. Parasitic infections are difficult to treat. A number of drugs are available once the condition has been identified. Removing part of the colon or needle aspiration of abscesses in liver may be required. Depending on the cause of the
Invitation to treat in the "Boots" case (described below) the offer is made by an action without any negotiations—such as presenting goods to a cashier—the offer will be presumed to be on the terms of the invitation to treat. Generally, advertisements are not offers but invitations to treat, so the person advertising is not compelled to sell. In "Partridge v Crittenden" [1968] 1 WLR 1204, a defendant who was charged with "offering for sale protected birds"—bramblefinch cocks and hens that he had advertised for sale in a newspaper—was "not" offering to sell them. Lord Parker CJ said it did not make business sense