𝐃𝐢𝐝 𝐲𝐨𝐮 𝐤𝐧𝐨𝐰 discomfort and pain at the side of your toenail (nail fold) doesn’t always mean you have an ingrown toenail. Callus and corns can form here due to the pressure and friction caused by your shoes or simply the way you walk. This can be hard to see in such a small area and also hard to reach without damaging your nail.
Consult a professional rather than causing harm to the area. Incorrect cutting of a toenail can indeed lead to ingrown nails.