Yes, the pure lanolin on the lips and hydrocortisone on the area above & below - the area the blisters are appearing. This approach works a bit better than the desitin.
Hello and hope you are doing well.
Good you could identify the allergen. Now you need to avoid it. Read the ingredient list of all food stuff carefully. Note down the list of products already identified. Although some children may eventually outgrow their allergic symptoms, about 80 per cent will have dry, irritable skin throughout their lives. About 10 to 15 per cent of children will continue to have them as adults. The symptoms may reappear at any time, especially during times of stress.
Hope this helped and do keep us posted.