I'm sorry that your question wasn't answered in a timely manner, Candy. We don't have many avian vets on this site. If you believe that Cookie has worsened in spite of the Clavamox it makes sense to discontinue it and then let Cookie's vet know that you've done so. Cookie's vet may suggest a different antibiotic because Cookie remains puffed up.
It's smart to keep her environment heated up to 85F. If she appears weakened, remove her perches and place her food and water on the bottom of the cage along with her. Revaluate her diet. Nutritional imbalances are a common problem in our pet birds. Seeds should compose less than 20% of her diet. A diet of mainly seed and nuts has excessive fat, carbohydrates, and phosphorus; marginal protein; adequate vitamin E, and are deficient in amino acids, calcium, available phosphorus, sodium, manganese, zinc, iron, vitamins A, D3 (necessary for efficient absorption of calcium), K, and B12, riboflavin, pantothenic acid, choline, and available niacin. Ideally, a balanced pelleted diet such as can be found here: www.harrisonsbirdfoods.com or here: www.lafeber.com/pet-birds should be fed as well as hard boiled egg yolk, pancakes and cornbread, the tops of fresh greens, dairy products such as yogurt and cheese, fresh fruits such as apples, pears, melon, kiwi, and berries, vegetables such as broccoli, carrots, beets, asparagus, cabbage, sweet potato, and squash, and even tiny pieces of meat.
Please respond with further questions or concerns if you wish.