infected 4th degree tear after birth?

Jessica
I need help please, i dont know where to post at all .. def not on my facebook but anyone with a tear down there 1st, 2nd 3rd or 4th degree (mines 4th btw) how long was the healing? And did u feel burning sensation when standing long periods of time? Any puss? Just the slightest! Im 3weeks PP. SHOULD i see my doctor again? Before 6weeks ? 
It still hurts so bad to sit