The doctor also told me to take care of anal area better in case that was the cause:
1. Always use at least a dime sized amount of lotion on first piece of toilet paper you wipe with
2. Never wipe with dry toilet paper, always spray water on it with spray bottle or put it under a running faucet, don't use wet wipes, they dry your skin out somehow
3. Use hair conditioner to clean anal area in the shower, don't use soap or a wash rag
4. dry anal area with towel and hair dryer after getting out of the shower