Fenlong Roll-On Liniment, which contains diclofenac, menthol, methyl salicylate, and linseed oil, is generally not recommended for use on children as young as 1.5 years old due to potential risks of skin irritation and systemic absorption of these ingredients.

⚠️ Safety Concerns for Young Children

• Diclofenac and methyl salicylate can be absorbed through the skin and may cause side effects in very young children.
• The skin of infants and toddlers is more sensitive, increasing the risk of irritation or allergic reactions.
• Menthol can cause respiratory issues or skin sensitivity in young children.

🩺 Recommendations

• Avoid using this liniment on a 1.5-year-old child unless specifically advised by a pediatrician.
• For pain or inflammation in young children, safer alternatives or pediatric formulations should be considered.
• Consult a pediatrician for appropriate treatment options tailored to the child's age and condition.

If you want, I can explain safer pain relief options for young children.