Patience Candy darlin' - you first need to rest up, the shops will still be there when you're fit and well and able to go shopping properly.
Ok for immediate analgesics, but might I suggest Bu-Tec patches - these are a 'mild' dose of Morphine and they last a whole week.
So sorry to hear you've pulled a ligament. Rest up! Take it easy, and take it easy on the pain meds also. Have you used CBDs for the pain?
As the lockdown eases here. The whole world decided to shop at my local large Tesco store A big fight occurred in the car park over a silly parking space. Blood was spilled and the police called.