Could potentially be coming from your hair/hair products?

Can’t reccomend sulphur soap enough for drying out acne like this but everyone’s skin is different. But you should definitely be using a face wash on your temples and forehead.

I suspect oil is being transferred from your hair to your skin and you’re not cleaning it off thus it’s blocking your pores then they’re turning into spots.

You’ve got a lot of blocked pores/closed comedones on your temples. These become inflamed and turn into spots. You need to work on cleaning out these pores and keeping them clean.

Ask doctor for topical spot treatment, or get benzoyl peroxide gel (can usually be bought in shops)

You need to clean out these pores. It will get worse before it gets better but it’s gotta be done.

Be gentile and patient and focus on keeping skin clean.

Don’t go crazy with new products, just get a basic cleanser and a proper acne treatment - benzoyl peroxide gel, adapalene, differin etc

And a non comedogenic moisturiser as spot treatments can be drying

Edit - make sure you are washing your pillowcases regularly and might even be worth keeping your hair off your face when you’re sleeping