Managing Allergies in Infants: Tips for Parents of 5-Month-Olds - Pediatrics

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What should I do?


Hello, my baby is currently five months old.
Two weeks ago, we started introducing solid foods, and a large red patch appeared on her left thigh.
It disappeared after a few days, so I stopped feeding her solids.
Last week, when we tried again, a red patch appeared on her right knee.
Could this be an allergy? Given the severity of SARS right now, I'm hesitant to take her for a check-up.
I contacted the formula company, and they advised me to switch to hydrolyzed protein formula.
I made the switch, but my baby doesn't seem to like it very much and only drinks about 100 ml a day.
Is there anything I can add to make her more willing to drink it? Thank you for your response.

Shan, 30~39 year old female. Ask Date: 2003/05/26

Dr. Liang Hongjian reply Pediatrics


Hello, attentive mother.
Your concerns are very common in our society and are a source of worry for many mothers.
Based on your description, allergies are the most likely cause, but I'm unsure if there are any other accompanying symptoms.
Generally, we consider a child to have an allergic constitution by examining their family history of allergies, their personal allergy history, and conducting clinical tests such as measuring placental blood levels of immunoglobulin E or allergen testing.
For a five-month-old child, the most common allergic issues statistically include atopic dermatitis, urticaria, and allergic gastrointestinal disorders.
If your little one has a rash that takes several days to resolve, it is essential to differentiate it from other conditions, such as insect bites or cellulitis.

Regarding the baby’s reluctance to drink after switching formulas, this is primarily because they have become accustomed to the original flavor.
Additionally, not all hydrolyzed protein formulas are palatable.
You can gradually mix the new formula with the old one to transition slowly to the new formula.
If the baby still refuses to drink, you might consider trying a different brand of hydrolyzed protein formula to see if it suits their taste better.

Reply Date: 2003/05/26

More Info


Managing allergies in infants can be a challenging experience for parents, especially when introducing solid foods. Your concerns about your 5-month-old baby developing red patches on her skin after starting solid foods are valid and warrant careful consideration. Here are some insights and tips to help you navigate this situation.


Understanding Allergies in Infants
1. Signs of Allergies: The red patches on your baby's skin could indeed be a sign of an allergic reaction. Common symptoms of food allergies in infants include rashes, hives, swelling, gastrointestinal issues (like vomiting or diarrhea), and respiratory problems. However, not all skin reactions are due to allergies; they could also be caused by irritants or other skin conditions.

2. Timing of Reactions: Allergic reactions can occur immediately after exposure to an allergen or may take several hours or even days to manifest. Since you mentioned that the red patches appeared after introducing solid foods, it is essential to monitor what foods were introduced and when the reactions occurred.

3. Common Allergens: Some of the most common food allergens for infants include cow's milk, eggs, peanuts, tree nuts, soy, wheat, fish, and shellfish. If you have introduced any of these foods, consider eliminating them one at a time to identify potential allergens.


Steps to Take
1. Consult a Pediatrician: While you may be hesitant to visit a doctor due to concerns about SARS, it is crucial to consult with a pediatrician or an allergist. They can provide a proper assessment and may recommend allergy testing if necessary. Telehealth options are also available if you prefer to avoid in-person visits.

2. Keep a Food Diary: Documenting what your baby eats and any reactions can help identify patterns and potential allergens. Note the type of food, the amount consumed, and the timing of any reactions.

3. Introduce New Foods Gradually: When reintroducing solid foods, do so one at a time and wait several days before introducing another new food. This approach allows you to monitor for any adverse reactions more effectively.

4. Consider Hypoallergenic Formula: If your baby is not responding well to the hydrolyzed formula, it may be challenging to find a suitable alternative. You can try mixing the formula with small amounts of breast milk or flavored water (if appropriate) to improve the taste, but consult your pediatrician before making any changes.

5. Hydration and Nutrition: Ensure your baby stays hydrated and receives adequate nutrition. If she is not drinking enough formula, consider offering small amounts of pureed fruits or vegetables that are less likely to cause allergies, such as bananas or sweet potatoes.


Additional Tips
- Monitor for Other Symptoms: Keep an eye out for any other symptoms that may indicate a more severe allergic reaction, such as difficulty breathing, swelling of the face or lips, or persistent vomiting. If these occur, seek emergency medical attention immediately.

- Educate Yourself: Familiarize yourself with the signs of food allergies and the management strategies. Resources from reputable organizations, such as the American Academy of Pediatrics or the American College of Allergy, Asthma, and Immunology, can provide valuable information.

- Support Groups: Consider joining support groups for parents of children with food allergies. Sharing experiences and tips with other parents can be incredibly helpful.

In conclusion, while it is understandable to be cautious about seeking medical advice during a pandemic, addressing potential allergies in your infant is crucial for her health and well-being. By taking a systematic approach to introducing foods and monitoring her reactions, you can help ensure a safer and more enjoyable feeding experience for your baby.

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