They could be Phillips dual color mini LED lights. Target currently has a few versions of the strings and the specs list 3mm LED. The exact names on target are “Philips 210ct LED App Controlled Christmas String Lights Dual Color” or “Philips 200ct LED App-Controlled Color Changing Create Motion Dome String Lights” You could probably use the bulbs in your current lights, but the strings are kind of pricey.
There is another maybe from Sylvania that doesn’t list the bulb size. Amazon has “Sylvania Stay-Lit Platinum 100-Count Color Changing LED Mini Dual Lights”. Apparently Costco also used to sell these, but doesn’t have them right now .
It might not be possible to find just a few replacement bulbs, but I wish you luck.
Not sure what’s available where you’re at without a prescription, but I recommend Orajel or any equivalent ulcer/tooth ache gel.
In addition to the other things you’re already using, you can steep black tea bags in warm water and gently bite on that. The tannins help with bleeding and inflammation.
A mouthwash or spray with Cetylpyridinium Chloride in the ingredients list will help with healing, but don’t buy a mouthwash that has alcohol/isopropyl in the ingredients. Dentyl, Oral B Gum detoxify, Parodontax, Biotene Dry Mouth Spray are all good.
I had several teeth removed from my inside my jaw that never came out and had a bone graft placed in the area that had to heal for 6 months before dental implants were placed. The mouthwash definitely helped me heal faster from that surgery than when I had my wisdom teeth out the year before and didn’t use any. Just do a gentle rinse dont swish it around hard! You don’t want to disturb the blood clots and get dry socket.
I hope you start to feel better soon!