Solution:
Here are the completed collocations:
- 1. have drops in it
- 2. have a cup of hot tea
- 3. wash with cold water
- 4. put a cold pack
- 5. drink plenty of fluids
- 6. eat light meals
- 7. get some rest
- 8. put down
- 9. take a painkiller
Answer: have, have, wash, put, drink, eat, get, put, take