Some awful suggestions above.
Hypoglycaemia is LOW sugar in the blood. So what would cottage cheese, cream, milk do?! Jesus. Yes they might contain (minimal) carbohydrates but you need food containing high amounts of simple sugars that are absorbed quickly to treat the hypo 'attack' as asked in the question.
Therefore, coke, juice, chocolate, sugars, biscuits...
Some peoples stupidity really can be dangerous. A diabetic hypo treated with cottage cheese will not do anything! If you don't know what you're talking about don't bother. Health is being discussed here, you know the thing that determines people's lifespans. Christ.