What have you tried?
Moth larvae love dark places.
Thoroughly wash and dry every garment and then stick it in a freezer.
Vacuum and dust every nook and cranny of a room, cupboard, wardrobe and chest of drawers.
Treat with insecticide.
Declutter - throw out anything you haven't worn in a year - moths and their larvae need to be left in peace to do their dirty work, so stop keeping more clothes than you need.
Rotate the clothes regularly - let them see daylight and inspect for moth larvae and damage.
Check everything - after my mother died, my dad was at a loss to understand why there seemed to be a lot of holes in his clothes - his woollen socks were infested and we had to go through his entire bedroom, washing everything and picking the larvae off before drying everything.
He'd been wearing and washing the same few garments, but there were tons of clothes he never wore, never saw the light of day and had become a larvae nursery. It was vile. 🤮 We had to throw a load of clothes away.
Wool, including mohair and cashmere, feathers, fur, leather and silk are all fair game, but they'll have a go at cotton and linen as well.
Don't put clothes back into storage (drawers, cupboards, wardrobes) before cleaning them - sweat and oils from your body are very attractive.
If you have natural fibres in your rugs and carpets, be ruthless there too.
Vacuum, vacuum, vacuum, shifting the furniture as you go.
Don't think that because you can't shift a piece, the larvae can't get under it. I've seen bald patches two feet square after shifting sideboards, chests of drawers and cupboards.
www.theguardian.com/environment/2019/aug/19/revenge-of-the-clothes-moths-as-numbers-boom-can-they-be-stopped
www.goodhousekeeping.com/uk/house-and-home/household-advice/a665191/the-best-pest-advice-clothes-moths/
www.english-heritage.org.uk/learn/conservation/clothes-moth-research/understanding-clothes-moths/
www.rentokil.co.uk/moths/diy-products/
www.pestcontroldirect.co.uk/how-to-control-clothes-moths/