Dog bite no blood. I worry about it. ?

My dog just playfully bit me in my arm, there was no bleeding just a scratch which was red and swollen a bit the swell subsided the very next day but since then i am worried if i get rabies. My dog is 3 and 1/2 year old he usually stays with the street dogs but i have had it vaccinated when it was 3 month then again after 1 and 1/2 year and recently one month before it bit me i gave it a booster dose because it was bitten by a stray dog. It has been 4 days since it bit me the dog and me we both are absolutely fine and my dog is not showing any ill sign. But still i was worried and contacted a pharmacist he gave me a tetanus injection and said me not to worry since the dog was fine and it was given a booster dose few days earlier and also the worst part is there is no available stock of anti-rabies injection in my town not in govt hospital nor in any pharmacy. Should i worry about it.???