My daughter is 3+ from last one month she is getting mouth ulcers it’s keep coming back applying gel it will fine but after few days it wil Come back why

A. Dologel you can apply but you know it keeps happening when the stomach is really having too much of heat so I think it would be best for you to start giving fennel seeds water and a B complex supplement on a regular basis at least for a month I’m sure it will help in eliminating them permanently