If the pet is not having any interest in food and low on activities then u can suspect pet is not so it's better to get the thermometer and check the temperature
Normal temperature for dogs is 101 to 102 degree Fahrenheit, which is higher than normal temperature for a human which is 97-99 because of which a dog would generally feel warmer on touch. A pet who has fever would generally exhibit some symptoms like dullness, lethargy or lack of appetite. If there are any of these please get him examined by a doctor.
Yeah, he is having less appetite from yest..can u pls suggest any medicines/remedies if possible?as no one is there in home except my mother and she will not be able to take him to the vet
When the temperature is 105 it's better to get a physical examination by a vet then start the treatment
And temperature can because of many reasons like bacterial or viral infection or bcz of protozoal infection
So better to get him checked
If it's not feasible to take him to vet u can book home visit appointment appointment by doctor
If it is difficult for you to step out please request a doctor to come home and check your pet and also take a blood test if possible. The temperature is too high to be treated remotely.