Hello. Thank you for writing to us I suggest a possibility of either a drug rash Or a rash due to anti-rabies vaccination. It is unlikely that a dog bite would result in a rash at a distant location. Most likely it is either a drug rash to an Oral antibiotic Or pain killer that you may have been prescribed. Another alternative is that it could be a rash to anti rabies vaccination. I suggest you to visit a dermatologist for a confirmatory diagnosis. An OTC oral antihistamine e.g cetrizine 10 mg once daily will provide you symptomatic relief from itching. Topically you may use a soothing lotion e.g calamine lotion, twice or thrice daily. Regards