Hi.. Can understand your concern.. As per your complain whitish appearance of tongue and inner lip is due to pallor due to reduced haemoglobin percentage.. If the tongue has a white coating then it can be due to fungal infection known as Oral Thrush. I would suggest you to consult an Oral physician and get evaluated and a thorough clinical evaluation and investigations like microscopic examination of scrapings from the tongue and also blood investigation can help in confirmation of cause and treatment can be done accordingly.. If anaemia is diagnosed keep calm and take the treatment accordingly.. Iron supplements can be taken preferably on an empty stomach for better absorption if it does not cause you stomach upset.. Vitamin C helps in absorption of iron so taking more of vitamin c can be helpful like citrus fruits like oranges, sweet lime etc. Take more of dry fruits,green leafy vegetables, cereals containing high iron content.Red meat can be taken if you are non vegetarian. In case of oral thrush antifungal medications like gargle with Nystatin mouthwash and sucking Clotrimazole lozenges can help.. Taking more of probiotics like Yoghurt and garlic can help in clearing the infection faster.. Hope this information helps.. Thanks and regards.. Dr.Honey Nandwani Arora.