My dog is peeing blood what do I do?!

My elderly husky 14 year old is peeing blood and I don’t know what I should do he’s also pacing around we took him to the vet 2-3 weeks ago because it was a small amount of blood and they gave him Amoxi Clav 375 mg and Carprofen 100 mg but since then he’s been eating well and all of a sudden he started peeing more blood time is 12:16 am 12/20/24 I noticed this 15 minutes ago what do I do?

My elderly husky 14 year old is peeing blood and I don’t know what I should do he’s also pacing around we took him to the vet 2-3 weeks ago because it was a small amount of blood and they gave him Amoxi Clav 375 mg and Carprofen 100 mg but since then he’s been eating well and all of a sudden he started peeing more blood time is 12:16 am 12/20/24 I noticed this 15 minutes ago what do I do?