After suffering from fissures for almost 6 months, I was desperate for a cure. I was seriously considering surgery but was able to avoid that with the help of multiple things. I will list them here:
1. If you have the urge to go, don't stop it - just GO
2. Sitz baths really helped in pain relief. Atleast twice a day is a must (more if possible)
3. Keep the rectum area well lubricated all the time. I tried multiple things but what helped me most was Ghee(Rarified butter). This is a very common product in Indian cuisine. I ate one tablespoon of ghee (sometimes more) everyday and also applied it externally two-three times a day. Also make sure to apply it before a bowel motion. Trust me, it works like a miracle on the pain.
4. Incorporated more fiber in the diet. I like Fiber One original cereal (1 serving has 57% of daily fiber requirement). Some foods I swear by are: cabbage, brocolli, sweet potato, apples, pears, papaya and mango.
5. I took botox injections in the rectal area. This is not very known in the US but is apparantly quite common in Australia. They help relax the rectal muscles and restore blood flow to the region which helps in healing of fissures. Ask your doctor about it. It took me about 2 weeks before I started noticing a reduction in pain.
6. I also take vitamin D supplements. Avoid acidic foods. Eat well and enough so that it is easier to have a bowel motion. Sleep is a great healer.
All the Best! Have faith - this is not a severe condition but yes, the pain is severe. It does get better, it does heal!