can someone please help me and my baby chompy he is 3 yrs old and about a4 months ago my bro instead that he went to the grooming salon(which i hate because i dont know how clean or how they treat my dog) so a few days after i was petting him and notice some 2 scabs on the back of his neck worried i took him to the vet n they just said it might have been a reaction to the grooming salon since i never take him she sent me home with medicated shampoo conditioner etc. 3 weeks later he gets them on the other side of this neck i rush him to the vet once more they dont explain or say anything to me just sent me home with expensive antibiotics. i took him again last saturday because i notice he has 2 on his chest. the doctor recommend a spray which i havent got because they didnt have it in stock. she really didnt say anything to me i ask her what it could be n she said she didnt know which i found ridiculous

complaining that this is the 3rd time i take him and still with no answers i demanded skin testing but have to wait 2 more weeks for answers.
they are round look like scabs they are not itching him they dont bleed. i need help any similiar experience any advice i dont wanna keep drugging up my dog is its not helping. any suggestions will be greatly appriecated it
Please help!