It is always difficult to predict or anticipate sickness matters. Trekking Planner Inc. always has its support staff and guides in place. They are well experienced to handle such types of incidents; they will escort you down to lower levels for first aid treatment. If it is of serious concern than a standby helicopter will be informed for emergency evacuation. You will be airlifted for immediate treatment in Kathmandu but expenses will have to pay extra for that. You will be treated in good hospital until you get back and recover completely.