Thank you for the query.
Generally the pain should be gradually going down day by day. Ingrown nail
surgery is not a serious procedure and should not give you so much pain (of course every person has different pain feeling).
However, as big toe nail is quite a dirty place and plenty of bacteria grows there, the risk of wound infection
is real. And this is what you should be aware of. If the pain is getting more intense, the skin gets swollen in this area, most likely infection has appeared. In such case it is advisable to visit your surgeon and take a look on it. Antibiotics might be necessary.
Hope this will help.