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I would want to take the temp with a rectal thermometer and see if it's actually elevated. Normal temp for a dog is 101-102.5 If it's elevated, you will need to try to bring it down.
If this is muscle pain, some aspirin might be appropriate. You can get dosage information here:
For the dry, crusty nose, the best thing you can use is some "bag balm" and you can get it at most pet stores/walmart.
There may be more going on here than you realize so be sure and keep a close eye on it.
Let me know if you need more help.
Baby aspirin is safe and is commonly used in dogs. I just hesitate to use it after surgery because it can thin the blood and make bleeding worse if there is a bleeding problem.